Home / 1,240,419,936.47-1,711,816,026.26-683,538,855.80

Finding the Fourth Proportional to 1,240,419,936.47, 1,711,816,026.26 and 683,538,855.80

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Solution

The fourth proportional to 1,240,419,936.47, 1,711,816,026.26 and 683,538,855.80 is: 943,303,742.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,419,936.47 : 1,711,816,026.26 = 683,538,855.80 : x
  2. Step 2: Convert to fraction form
    1,240,419,936.47/1,711,816,026.26 = 683,538,855.80/x
  3. Step 3: Cross multiply
    1,240,419,936.47x = 1,711,816,026.26 × 683,538,855.80
  4. Step 4: Simplify right side
    1,240,419,936.47x = 1,170,092,767,917,886,464
  5. Step 5: Solve for x
    x = 1,170,092,767,917,886,464/1,240,419,936.47
  6. Step 6: Final answer
    x = 943,303,742.16

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Double scale
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1.5x scale

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.