Home / 485,543,844.40-728,063,824.20-178,678,001.20

Finding the Fourth Proportional to 485,543,844.40, 728,063,824.20 and 178,678,001.20

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Solution

The fourth proportional to 485,543,844.40, 728,063,824.20 and 178,678,001.20 is: 267,924,288.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,543,844.40 : 728,063,824.20 = 178,678,001.20 : x
  2. Step 2: Convert to fraction form
    485,543,844.40/728,063,824.20 = 178,678,001.20/x
  3. Step 3: Cross multiply
    485,543,844.40x = 728,063,824.20 × 178,678,001.20
  4. Step 4: Simplify right side
    485,543,844.40x = 130,088,988,854,084,192
  5. Step 5: Solve for x
    x = 130,088,988,854,084,192/485,543,844.40
  6. Step 6: Final answer
    x = 267,924,288.10

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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.