Home / 1,289,120,504,561.80-1,778,991,827,016.50-703,183,119,196.20

Finding the Fourth Proportional to 1,289,120,504,561.80, 1,778,991,827,016.50 and 703,183,119,196.20

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Solution

The fourth proportional to 1,289,120,504,561.80, 1,778,991,827,016.50 and 703,183,119,196.20 is: 970,395,721,361.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,120,504,561.80 : 1,778,991,827,016.50 = 703,183,119,196.20 : x
  2. Step 2: Convert to fraction form
    1,289,120,504,561.80/1,778,991,827,016.50 = 703,183,119,196.20/x
  3. Step 3: Cross multiply
    1,289,120,504,561.80x = 1,778,991,827,016.50 × 703,183,119,196.20
  4. Step 4: Simplify right side
    1,289,120,504,561.80x = 1,250,957,021,946,008,987,238,400
  5. Step 5: Solve for x
    x = 1,250,957,021,946,008,987,238,400/1,289,120,504,561.80
  6. Step 6: Final answer
    x = 970,395,721,361.39

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Double scale
Find fourth proportional to 1,289,120,504,562.80, 1,778,991,827,017.88 and 703,183,119,197.20
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.