Home / 20,986,369.59-28,960,425.45-11,693,459.52

Finding the Fourth Proportional to 20,986,369.59, 28,960,425.45 and 11,693,459.52

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Solution

The fourth proportional to 20,986,369.59, 28,960,425.45 and 11,693,459.52 is: 16,136,548.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,986,369.59 : 28,960,425.45 = 11,693,459.52 : x
  2. Step 2: Convert to fraction form
    20,986,369.59/28,960,425.45 = 11,693,459.52/x
  3. Step 3: Cross multiply
    20,986,369.59x = 28,960,425.45 × 11,693,459.52
  4. Step 4: Simplify right side
    20,986,369.59x = 338,647,562,681,552.75
  5. Step 5: Solve for x
    x = 338,647,562,681,552.75/20,986,369.59
  6. Step 6: Final answer
    x = 16,136,548.12

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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.