Home / 39,133,108.80-54,001,889.28-21,730,561.92

Finding the Fourth Proportional to 39,133,108.80, 54,001,889.28 and 21,730,561.92

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Solution

The fourth proportional to 39,133,108.80, 54,001,889.28 and 21,730,561.92 is: 29,987,175.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,133,108.80 : 54,001,889.28 = 21,730,561.92 : x
  2. Step 2: Convert to fraction form
    39,133,108.80/54,001,889.28 = 21,730,561.92/x
  3. Step 3: Cross multiply
    39,133,108.80x = 54,001,889.28 × 21,730,561.92
  4. Step 4: Simplify right side
    39,133,108.80x = 1,173,491,398,796,024.25
  5. Step 5: Solve for x
    x = 1,173,491,398,796,024.25/39,133,108.80
  6. Step 6: Final answer
    x = 29,987,175.43

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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.