Home / 38,730,847.46-53,448,569.42-21,327,151.28

Finding the Fourth Proportional to 38,730,847.46, 53,448,569.42 and 21,327,151.28

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Solution

The fourth proportional to 38,730,847.46, 53,448,569.42 and 21,327,151.28 is: 29,431,468.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,730,847.46 : 53,448,569.42 = 21,327,151.28 : x
  2. Step 2: Convert to fraction form
    38,730,847.46/53,448,569.42 = 21,327,151.28/x
  3. Step 3: Cross multiply
    38,730,847.46x = 53,448,569.42 × 21,327,151.28
  4. Step 4: Simplify right side
    38,730,847.46x = 1,139,905,725,346,043.25
  5. Step 5: Solve for x
    x = 1,139,905,725,346,043.25/38,730,847.46
  6. Step 6: Final answer
    x = 29,431,468.72

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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.