Home / 387,951,541.98-582,003,972.81-142,310,457.60

Finding the Fourth Proportional to 387,951,541.98, 582,003,972.81 and 142,310,457.60

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Solution

The fourth proportional to 387,951,541.98, 582,003,972.81 and 142,310,457.60 is: 213,493,807.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,951,541.98 : 582,003,972.81 = 142,310,457.60 : x
  2. Step 2: Convert to fraction form
    387,951,541.98/582,003,972.81 = 142,310,457.60/x
  3. Step 3: Cross multiply
    387,951,541.98x = 582,003,972.81 × 142,310,457.60
  4. Step 4: Simplify right side
    387,951,541.98x = 82,825,251,695,609,040
  5. Step 5: Solve for x
    x = 82,825,251,695,609,040/387,951,541.98
  6. Step 6: Final answer
    x = 213,493,807.17

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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.