Home / 20,500,692.18-28,291,545.66-11,333,925.42

Finding the Fourth Proportional to 20,500,692.18, 28,291,545.66 and 11,333,925.42

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Solution

The fourth proportional to 20,500,692.18, 28,291,545.66 and 11,333,925.42 is: 15,641,143.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,500,692.18 : 28,291,545.66 = 11,333,925.42 : x
  2. Step 2: Convert to fraction form
    20,500,692.18/28,291,545.66 = 11,333,925.42/x
  3. Step 3: Cross multiply
    20,500,692.18x = 28,291,545.66 × 11,333,925.42
  4. Step 4: Simplify right side
    20,500,692.18x = 320,654,268,526,964.69
  5. Step 5: Solve for x
    x = 320,654,268,526,964.69/20,500,692.18
  6. Step 6: Final answer
    x = 15,641,143.51

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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.