Home / 21,331,285.80-29,436,964.32-11,541,515.16

Finding the Fourth Proportional to 21,331,285.80, 29,436,964.32 and 11,541,515.16

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Solution

The fourth proportional to 21,331,285.80, 29,436,964.32 and 11,541,515.16 is: 15,927,177.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,331,285.80 : 29,436,964.32 = 11,541,515.16 : x
  2. Step 2: Convert to fraction form
    21,331,285.80/29,436,964.32 = 11,541,515.16/x
  3. Step 3: Cross multiply
    21,331,285.80x = 29,436,964.32 × 11,541,515.16
  4. Step 4: Simplify right side
    21,331,285.80x = 339,747,169,963,659.12
  5. Step 5: Solve for x
    x = 339,747,169,963,659.12/21,331,285.80
  6. Step 6: Final answer
    x = 15,927,177.25

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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.