Home / 39,904,643.52-55,068,660-21,569,885.28

Finding the Fourth Proportional to 39,904,643.52, 55,068,660 and 21,569,885.28

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Solution

The fourth proportional to 39,904,643.52, 55,068,660 and 21,569,885.28 is: 29,766,577.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,904,643.52 : 55,068,660 = 21,569,885.28 : x
  2. Step 2: Convert to fraction form
    39,904,643.52/55,068,660 = 21,569,885.28/x
  3. Step 3: Cross multiply
    39,904,643.52x = 55,068,660 × 21,569,885.28
  4. Step 4: Simplify right side
    39,904,643.52x = 1,187,824,678,723,324.75
  5. Step 5: Solve for x
    x = 1,187,824,678,723,324.75/39,904,643.52
  6. Step 6: Final answer
    x = 29,766,577.87

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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.