Home / 20,500,692.68-28,291,546.35-11,333,925.92

Finding the Fourth Proportional to 20,500,692.68, 28,291,546.35 and 11,333,925.92

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Solution

The fourth proportional to 20,500,692.68, 28,291,546.35 and 11,333,925.92 is: 15,641,144.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,500,692.68 : 28,291,546.35 = 11,333,925.92 : x
  2. Step 2: Convert to fraction form
    20,500,692.68/28,291,546.35 = 11,333,925.92/x
  3. Step 3: Cross multiply
    20,500,692.68x = 28,291,546.35 × 11,333,925.92
  4. Step 4: Simplify right side
    20,500,692.68x = 320,654,290,351,688.62
  5. Step 5: Solve for x
    x = 320,654,290,351,688.62/20,500,692.68
  6. Step 6: Final answer
    x = 15,641,144.20

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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.