Home / 120,231,127.71-165,919,277.79-65,226,984.21

Finding the Fourth Proportional to 120,231,127.71, 165,919,277.79 and 65,226,984.21

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Solution

The fourth proportional to 120,231,127.71, 165,919,277.79 and 65,226,984.21 is: 90,013,412.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,231,127.71 : 165,919,277.79 = 65,226,984.21 : x
  2. Step 2: Convert to fraction form
    120,231,127.71/165,919,277.79 = 65,226,984.21/x
  3. Step 3: Cross multiply
    120,231,127.71x = 165,919,277.79 × 65,226,984.21
  4. Step 4: Simplify right side
    120,231,127.71x = 10,822,414,112,542,934
  5. Step 5: Solve for x
    x = 10,822,414,112,542,934/120,231,127.71
  6. Step 6: Final answer
    x = 90,013,412.66

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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.