Home / 20,689,854.94-28,552,885.55-11,522,497.69

Finding the Fourth Proportional to 20,689,854.94, 28,552,885.55 and 11,522,497.69

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Solution

The fourth proportional to 20,689,854.94, 28,552,885.55 and 11,522,497.69 is: 15,901,540.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689,854.94 : 28,552,885.55 = 11,522,497.69 : x
  2. Step 2: Convert to fraction form
    20,689,854.94/28,552,885.55 = 11,522,497.69/x
  3. Step 3: Cross multiply
    20,689,854.94x = 28,552,885.55 × 11,522,497.69
  4. Step 4: Simplify right side
    20,689,854.94x = 329,000,557,792,709.38
  5. Step 5: Solve for x
    x = 329,000,557,792,709.38/20,689,854.94
  6. Step 6: Final answer
    x = 15,901,540.09

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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.