Home / 39,302,875.71-54,235,755.10-21,661,724.79

Finding the Fourth Proportional to 39,302,875.71, 54,235,755.10 and 21,661,724.79

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Solution

The fourth proportional to 39,302,875.71, 54,235,755.10 and 21,661,724.79 is: 29,891,960.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,302,875.71 : 54,235,755.10 = 21,661,724.79 : x
  2. Step 2: Convert to fraction form
    39,302,875.71/54,235,755.10 = 21,661,724.79/x
  3. Step 3: Cross multiply
    39,302,875.71x = 54,235,755.10 × 21,661,724.79
  4. Step 4: Simplify right side
    39,302,875.71x = 1,174,840,000,754,039
  5. Step 5: Solve for x
    x = 1,174,840,000,754,039/39,302,875.71
  6. Step 6: Final answer
    x = 29,891,960.31

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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.