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Finding the Fourth Proportional to 18,738,082.65, 28,107,123.98 and 18,738,082.65

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Solution

The fourth proportional to 18,738,082.65, 28,107,123.98 and 18,738,082.65 is: 28,107,123.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738,082.65 : 28,107,123.98 = 18,738,082.65 : x
  2. Step 2: Convert to fraction form
    18,738,082.65/28,107,123.98 = 18,738,082.65/x
  3. Step 3: Cross multiply
    18,738,082.65x = 28,107,123.98 × 18,738,082.65
  4. Step 4: Simplify right side
    18,738,082.65x = 526,673,612,097,346.50
  5. Step 5: Solve for x
    x = 526,673,612,097,346.50/18,738,082.65
  6. Step 6: Final answer
    x = 28,107,123.98

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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.