Home / 51,168,082.60-76,752,123.90-20,859,423.40

Finding the Fourth Proportional to 51,168,082.60, 76,752,123.90 and 20,859,423.40

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Solution

The fourth proportional to 51,168,082.60, 76,752,123.90 and 20,859,423.40 is: 31,289,135.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,168,082.60 : 76,752,123.90 = 20,859,423.40 : x
  2. Step 2: Convert to fraction form
    51,168,082.60/76,752,123.90 = 20,859,423.40/x
  3. Step 3: Cross multiply
    51,168,082.60x = 76,752,123.90 × 20,859,423.40
  4. Step 4: Simplify right side
    51,168,082.60x = 1,601,005,049,279,359.25
  5. Step 5: Solve for x
    x = 1,601,005,049,279,359.25/51,168,082.60
  6. Step 6: Final answer
    x = 31,289,135.10

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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.