Home / 74,343,844.80-111,515,767.20-66,053,365.20

Finding the Fourth Proportional to 74,343,844.80, 111,515,767.20 and 66,053,365.20

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Solution

The fourth proportional to 74,343,844.80, 111,515,767.20 and 66,053,365.20 is: 99,080,047.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,343,844.80 : 111,515,767.20 = 66,053,365.20 : x
  2. Step 2: Convert to fraction form
    74,343,844.80/111,515,767.20 = 66,053,365.20/x
  3. Step 3: Cross multiply
    74,343,844.80x = 111,515,767.20 × 66,053,365.20
  4. Step 4: Simplify right side
    74,343,844.80x = 7,365,991,696,419,782
  5. Step 5: Solve for x
    x = 7,365,991,696,419,782/74,343,844.80
  6. Step 6: Final answer
    x = 99,080,047.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.