Home / 257,516,003.20-386,274,004.80-155,227,388.80

Finding the Fourth Proportional to 257,516,003.20, 386,274,004.80 and 155,227,388.80

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Solution

The fourth proportional to 257,516,003.20, 386,274,004.80 and 155,227,388.80 is: 232,841,083.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,516,003.20 : 386,274,004.80 = 155,227,388.80 : x
  2. Step 2: Convert to fraction form
    257,516,003.20/386,274,004.80 = 155,227,388.80/x
  3. Step 3: Cross multiply
    257,516,003.20x = 386,274,004.80 × 155,227,388.80
  4. Step 4: Simplify right side
    257,516,003.20x = 59,960,305,126,422,672
  5. Step 5: Solve for x
    x = 59,960,305,126,422,672/257,516,003.20
  6. Step 6: Final answer
    x = 232,841,083.20

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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.