Home / 20,427,909.18-28,193,068.71-11,728,808.70

Finding the Fourth Proportional to 20,427,909.18, 28,193,068.71 and 11,728,808.70

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Solution

The fourth proportional to 20,427,909.18, 28,193,068.71 and 11,728,808.70 is: 16,187,222.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,427,909.18 : 28,193,068.71 = 11,728,808.70 : x
  2. Step 2: Convert to fraction form
    20,427,909.18/28,193,068.71 = 11,728,808.70/x
  3. Step 3: Cross multiply
    20,427,909.18x = 28,193,068.71 × 11,728,808.70
  4. Step 4: Simplify right side
    20,427,909.18x = 330,671,109,565,545.75
  5. Step 5: Solve for x
    x = 330,671,109,565,545.75/20,427,909.18
  6. Step 6: Final answer
    x = 16,187,222.42

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.