Home / 21,581,775.20-29,781,963.50-11,792,555.42

Finding the Fourth Proportional to 21,581,775.20, 29,781,963.50 and 11,792,555.42

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Solution

The fourth proportional to 21,581,775.20, 29,781,963.50 and 11,792,555.42 is: 16,273,242.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,581,775.20 : 29,781,963.50 = 11,792,555.42 : x
  2. Step 2: Convert to fraction form
    21,581,775.20/29,781,963.50 = 11,792,555.42/x
  3. Step 3: Cross multiply
    21,581,775.20x = 29,781,963.50 × 11,792,555.42
  4. Step 4: Simplify right side
    21,581,775.20x = 351,205,455,090,167.19
  5. Step 5: Solve for x
    x = 351,205,455,090,167.19/21,581,775.20
  6. Step 6: Final answer
    x = 16,273,242.21

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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.