Home / 20,541,380.91-28,346,759.24-11,373,826.83

Finding the Fourth Proportional to 20,541,380.91, 28,346,759.24 and 11,373,826.83

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Solution

The fourth proportional to 20,541,380.91, 28,346,759.24 and 11,373,826.83 is: 15,695,689.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,541,380.91 : 28,346,759.24 = 11,373,826.83 : x
  2. Step 2: Convert to fraction form
    20,541,380.91/28,346,759.24 = 11,373,826.83/x
  3. Step 3: Cross multiply
    20,541,380.91x = 28,346,759.24 × 11,373,826.83
  4. Step 4: Simplify right side
    20,541,380.91x = 322,411,130,730,593.25
  5. Step 5: Solve for x
    x = 322,411,130,730,593.25/20,541,380.91
  6. Step 6: Final answer
    x = 15,695,689.21

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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.