Home / 278,745,611.32-418,174,229.22-156,098,345.08

Finding the Fourth Proportional to 278,745,611.32, 418,174,229.22 and 156,098,345.08

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Solution

The fourth proportional to 278,745,611.32, 418,174,229.22 and 156,098,345.08 is: 234,178,772.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,745,611.32 : 418,174,229.22 = 156,098,345.08 : x
  2. Step 2: Convert to fraction form
    278,745,611.32/418,174,229.22 = 156,098,345.08/x
  3. Step 3: Cross multiply
    278,745,611.32x = 418,174,229.22 × 156,098,345.08
  4. Step 4: Simplify right side
    278,745,611.32x = 65,276,305,136,346,592
  5. Step 5: Solve for x
    x = 65,276,305,136,346,592/278,745,611.32
  6. Step 6: Final answer
    x = 234,178,772.64

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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.