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Finding the Fourth Proportional to 289,641,617.64, 399,719,793.06 and 179,668,760.04

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Solution

The fourth proportional to 289,641,617.64, 399,719,793.06 and 179,668,760.04 is: 247,951,797.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,641,617.64 : 399,719,793.06 = 179,668,760.04 : x
  2. Step 2: Convert to fraction form
    289,641,617.64/399,719,793.06 = 179,668,760.04/x
  3. Step 3: Cross multiply
    289,641,617.64x = 399,719,793.06 × 179,668,760.04
  4. Step 4: Simplify right side
    289,641,617.64x = 71,817,159,582,535,592
  5. Step 5: Solve for x
    x = 71,817,159,582,535,592/289,641,617.64
  6. Step 6: Final answer
    x = 247,951,797.01

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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.