Home / 18,738,082.10-28,107,123.15-8,660,386.10

Finding the Fourth Proportional to 18,738,082.10, 28,107,123.15 and 8,660,386.10

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Solution

The fourth proportional to 18,738,082.10, 28,107,123.15 and 8,660,386.10 is: 12,990,579.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738,082.10 : 28,107,123.15 = 8,660,386.10 : x
  2. Step 2: Convert to fraction form
    18,738,082.10/28,107,123.15 = 8,660,386.10/x
  3. Step 3: Cross multiply
    18,738,082.10x = 28,107,123.15 × 8,660,386.10
  4. Step 4: Simplify right side
    18,738,082.10x = 243,418,538,639,248.19
  5. Step 5: Solve for x
    x = 243,418,538,639,248.19/18,738,082.10
  6. Step 6: Final answer
    x = 12,990,579.15

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Double scale
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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.