Home / 13,924,808.70-20,887,213.05-12,728,082.30

Finding the Fourth Proportional to 13,924,808.70, 20,887,213.05 and 12,728,082.30

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Solution

The fourth proportional to 13,924,808.70, 20,887,213.05 and 12,728,082.30 is: 19,092,123.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,924,808.70 : 20,887,213.05 = 12,728,082.30 : x
  2. Step 2: Convert to fraction form
    13,924,808.70/20,887,213.05 = 12,728,082.30/x
  3. Step 3: Cross multiply
    13,924,808.70x = 20,887,213.05 × 12,728,082.30
  4. Step 4: Simplify right side
    13,924,808.70x = 265,854,166,718,034.03
  5. Step 5: Solve for x
    x = 265,854,166,718,034.03/13,924,808.70
  6. Step 6: Final answer
    x = 19,092,123.45

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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.