Home / 20,986,371.59-28,960,428.21-11,693,461.52

Finding the Fourth Proportional to 20,986,371.59, 28,960,428.21 and 11,693,461.52

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Solution

The fourth proportional to 20,986,371.59, 28,960,428.21 and 11,693,461.52 is: 16,136,550.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,986,371.59 : 28,960,428.21 = 11,693,461.52 : x
  2. Step 2: Convert to fraction form
    20,986,371.59/28,960,428.21 = 11,693,461.52/x
  3. Step 3: Cross multiply
    20,986,371.59x = 28,960,428.21 × 11,693,461.52
  4. Step 4: Simplify right side
    20,986,371.59x = 338,647,652,876,357.50
  5. Step 5: Solve for x
    x = 338,647,652,876,357.50/20,986,371.59
  6. Step 6: Final answer
    x = 16,136,550.88

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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.