Home / 13,149,143.90-19,723,715.85-7,409,581.10

Finding the Fourth Proportional to 13,149,143.90, 19,723,715.85 and 7,409,581.10

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Solution

The fourth proportional to 13,149,143.90, 19,723,715.85 and 7,409,581.10 is: 11,114,371.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,149,143.90 : 19,723,715.85 = 7,409,581.10 : x
  2. Step 2: Convert to fraction form
    13,149,143.90/19,723,715.85 = 7,409,581.10/x
  3. Step 3: Cross multiply
    13,149,143.90x = 19,723,715.85 × 7,409,581.10
  4. Step 4: Simplify right side
    13,149,143.90x = 146,144,472,183,930.44
  5. Step 5: Solve for x
    x = 146,144,472,183,930.44/13,149,143.90
  6. Step 6: Final answer
    x = 11,114,371.65

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Double scale
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Similar ratio
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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.