Home / 10,331,331.90-15,496,997.85-9,215,305.80

Finding the Fourth Proportional to 10,331,331.90, 15,496,997.85 and 9,215,305.80

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Solution

The fourth proportional to 10,331,331.90, 15,496,997.85 and 9,215,305.80 is: 13,822,958.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,331,331.90 : 15,496,997.85 = 9,215,305.80 : x
  2. Step 2: Convert to fraction form
    10,331,331.90/15,496,997.85 = 9,215,305.80/x
  3. Step 3: Cross multiply
    10,331,331.90x = 15,496,997.85 × 9,215,305.80
  4. Step 4: Simplify right side
    10,331,331.90x = 142,809,574,169,692.53
  5. Step 5: Solve for x
    x = 142,809,574,169,692.53/10,331,331.90
  6. Step 6: Final answer
    x = 13,822,958.70

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.