Home / 100,372,836.48-138,513,872.64-55,718,327.04

Finding the Fourth Proportional to 100,372,836.48, 138,513,872.64 and 55,718,327.04

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Solution

The fourth proportional to 100,372,836.48, 138,513,872.64 and 55,718,327.04 is: 76,890,935.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,372,836.48 : 138,513,872.64 = 55,718,327.04 : x
  2. Step 2: Convert to fraction form
    100,372,836.48/138,513,872.64 = 55,718,327.04/x
  3. Step 3: Cross multiply
    100,372,836.48x = 138,513,872.64 × 55,718,327.04
  4. Step 4: Simplify right side
    100,372,836.48x = 7,717,761,255,332,427
  5. Step 5: Solve for x
    x = 7,717,761,255,332,427/100,372,836.48
  6. Step 6: Final answer
    x = 76,890,935.10

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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.