Home / 19,721,280.90-29,561,800.95-13,332,179.10

Finding the Fourth Proportional to 19,721,280.90, 29,561,800.95 and 13,332,179.10

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Solution

The fourth proportional to 19,721,280.90, 29,561,800.95 and 13,332,179.10 is: 19,984,666.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,721,280.90 : 29,561,800.95 = 13,332,179.10 : x
  2. Step 2: Convert to fraction form
    19,721,280.90/29,561,800.95 = 13,332,179.10/x
  3. Step 3: Cross multiply
    19,721,280.90x = 29,561,800.95 × 13,332,179.10
  4. Step 4: Simplify right side
    19,721,280.90x = 394,123,224,783,950.12
  5. Step 5: Solve for x
    x = 394,123,224,783,950.12/19,721,280.90
  6. Step 6: Final answer
    x = 19,984,666.65

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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.