Home / 256,608,082.10-384,912,123.15-84,090,523.70

Finding the Fourth Proportional to 256,608,082.10, 384,912,123.15 and 84,090,523.70

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Solution

The fourth proportional to 256,608,082.10, 384,912,123.15 and 84,090,523.70 is: 126,135,785.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,608,082.10 : 384,912,123.15 = 84,090,523.70 : x
  2. Step 2: Convert to fraction form
    256,608,082.10/384,912,123.15 = 84,090,523.70/x
  3. Step 3: Cross multiply
    256,608,082.10x = 384,912,123.15 × 84,090,523.70
  4. Step 4: Simplify right side
    256,608,082.10x = 32,367,462,014,162,392
  5. Step 5: Solve for x
    x = 32,367,462,014,162,392/256,608,082.10
  6. Step 6: Final answer
    x = 126,135,785.55

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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.