Home / 21,138,098.70-31,707,148.05-17,551,029.90

Finding the Fourth Proportional to 21,138,098.70, 31,707,148.05 and 17,551,029.90

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Solution

The fourth proportional to 21,138,098.70, 31,707,148.05 and 17,551,029.90 is: 26,326,544.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,138,098.70 : 31,707,148.05 = 17,551,029.90 : x
  2. Step 2: Convert to fraction form
    21,138,098.70/31,707,148.05 = 17,551,029.90/x
  3. Step 3: Cross multiply
    21,138,098.70x = 31,707,148.05 × 17,551,029.90
  4. Step 4: Simplify right side
    21,138,098.70x = 556,493,103,469,276.69
  5. Step 5: Solve for x
    x = 556,493,103,469,276.69/21,138,098.70
  6. Step 6: Final answer
    x = 26,326,544.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.