Home / 387,951,316.04-582,003,633.89-142,310,231.66

Finding the Fourth Proportional to 387,951,316.04, 582,003,633.89 and 142,310,231.66

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Solution

The fourth proportional to 387,951,316.04, 582,003,633.89 and 142,310,231.66 is: 213,493,468.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,951,316.04 : 582,003,633.89 = 142,310,231.66 : x
  2. Step 2: Convert to fraction form
    387,951,316.04/582,003,633.89 = 142,310,231.66/x
  3. Step 3: Cross multiply
    387,951,316.04x = 582,003,633.89 × 142,310,231.66
  4. Step 4: Simplify right side
    387,951,316.04x = 82,825,071,966,591,184
  5. Step 5: Solve for x
    x = 82,825,071,966,591,184/387,951,316.04
  6. Step 6: Final answer
    x = 213,493,468.23

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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.