Home / 306,215,956.60-459,323,934.90-279,431,330.20

Finding the Fourth Proportional to 306,215,956.60, 459,323,934.90 and 279,431,330.20

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Solution

The fourth proportional to 306,215,956.60, 459,323,934.90 and 279,431,330.20 is: 419,146,995.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,215,956.60 : 459,323,934.90 = 279,431,330.20 : x
  2. Step 2: Convert to fraction form
    306,215,956.60/459,323,934.90 = 279,431,330.20/x
  3. Step 3: Cross multiply
    306,215,956.60x = 459,323,934.90 × 279,431,330.20
  4. Step 4: Simplify right side
    306,215,956.60x = 128,349,498,121,805,184
  5. Step 5: Solve for x
    x = 128,349,498,121,805,184/306,215,956.60
  6. Step 6: Final answer
    x = 419,146,995.30

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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.