Home / 20,630,910.92-28,442,203.25-16,458,752.79

Finding the Fourth Proportional to 20,630,910.92, 28,442,203.25 and 16,458,752.79

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Solution

The fourth proportional to 20,630,910.92, 28,442,203.25 and 16,458,752.79 is: 22,690,379.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,630,910.92 : 28,442,203.25 = 16,458,752.79 : x
  2. Step 2: Convert to fraction form
    20,630,910.92/28,442,203.25 = 16,458,752.79/x
  3. Step 3: Cross multiply
    20,630,910.92x = 28,442,203.25 × 16,458,752.79
  4. Step 4: Simplify right side
    20,630,910.92x = 468,123,192,012,390.81
  5. Step 5: Solve for x
    x = 468,123,192,012,390.81/20,630,910.92
  6. Step 6: Final answer
    x = 22,690,379.21

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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.