Home / 187,218,003.10-280,827,004.65-85,181,331.10

Finding the Fourth Proportional to 187,218,003.10, 280,827,004.65 and 85,181,331.10

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Solution

The fourth proportional to 187,218,003.10, 280,827,004.65 and 85,181,331.10 is: 127,771,996.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,218,003.10 : 280,827,004.65 = 85,181,331.10 : x
  2. Step 2: Convert to fraction form
    187,218,003.10/280,827,004.65 = 85,181,331.10/x
  3. Step 3: Cross multiply
    187,218,003.10x = 280,827,004.65 × 85,181,331.10
  4. Step 4: Simplify right side
    187,218,003.10x = 23,921,218,064,912,884
  5. Step 5: Solve for x
    x = 23,921,218,064,912,884/187,218,003.10
  6. Step 6: Final answer
    x = 127,771,996.65

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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.