Home / 392,279,776.32-541,346,065.28-227,363,005.12

Finding the Fourth Proportional to 392,279,776.32, 541,346,065.28 and 227,363,005.12

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Solution

The fourth proportional to 392,279,776.32, 541,346,065.28 and 227,363,005.12 is: 313,760,931.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,279,776.32 : 541,346,065.28 = 227,363,005.12 : x
  2. Step 2: Convert to fraction form
    392,279,776.32/541,346,065.28 = 227,363,005.12/x
  3. Step 3: Cross multiply
    392,279,776.32x = 541,346,065.28 × 227,363,005.12
  4. Step 4: Simplify right side
    392,279,776.32x = 123,082,068,211,948,496
  5. Step 5: Solve for x
    x = 123,082,068,211,948,496/392,279,776.32
  6. Step 6: Final answer
    x = 313,760,931.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.