Home / 13,426,213.90-20,139,320.85-12,082,521.10

Finding the Fourth Proportional to 13,426,213.90, 20,139,320.85 and 12,082,521.10

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Solution

The fourth proportional to 13,426,213.90, 20,139,320.85 and 12,082,521.10 is: 18,123,781.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426,213.90 : 20,139,320.85 = 12,082,521.10 : x
  2. Step 2: Convert to fraction form
    13,426,213.90/20,139,320.85 = 12,082,521.10/x
  3. Step 3: Cross multiply
    13,426,213.90x = 20,139,320.85 × 12,082,521.10
  4. Step 4: Simplify right side
    13,426,213.90x = 243,333,769,109,794.94
  5. Step 5: Solve for x
    x = 243,333,769,109,794.94/13,426,213.90
  6. Step 6: Final answer
    x = 18,123,781.65

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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.