Home / 20,986,367.59-28,960,422.69-11,693,457.52

Finding the Fourth Proportional to 20,986,367.59, 28,960,422.69 and 11,693,457.52

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Solution

The fourth proportional to 20,986,367.59, 28,960,422.69 and 11,693,457.52 is: 16,136,545.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,986,367.59 : 28,960,422.69 = 11,693,457.52 : x
  2. Step 2: Convert to fraction form
    20,986,367.59/28,960,422.69 = 11,693,457.52/x
  3. Step 3: Cross multiply
    20,986,367.59x = 28,960,422.69 × 11,693,457.52
  4. Step 4: Simplify right side
    20,986,367.59x = 338,647,472,486,759.12
  5. Step 5: Solve for x
    x = 338,647,472,486,759.12/20,986,367.59
  6. Step 6: Final answer
    x = 16,136,545.36

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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.