Home / 38,017,691.31-52,465,445.62-21,500,285.88

Finding the Fourth Proportional to 38,017,691.31, 52,465,445.62 and 21,500,285.88

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Solution

The fourth proportional to 38,017,691.31, 52,465,445.62 and 21,500,285.88 is: 29,670,977.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,017,691.31 : 52,465,445.62 = 21,500,285.88 : x
  2. Step 2: Convert to fraction form
    38,017,691.31/52,465,445.62 = 21,500,285.88/x
  3. Step 3: Cross multiply
    38,017,691.31x = 52,465,445.62 × 21,500,285.88
  4. Step 4: Simplify right side
    38,017,691.31x = 1,128,022,079,375,829
  5. Step 5: Solve for x
    x = 1,128,022,079,375,829/38,017,691.31
  6. Step 6: Final answer
    x = 29,670,977.92

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1.5x scale

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.