Home / 327,638,047.20-491,457,070.80-85,300,951.20

Finding the Fourth Proportional to 327,638,047.20, 491,457,070.80 and 85,300,951.20

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Solution

The fourth proportional to 327,638,047.20, 491,457,070.80 and 85,300,951.20 is: 127,951,426.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,638,047.20 : 491,457,070.80 = 85,300,951.20 : x
  2. Step 2: Convert to fraction form
    327,638,047.20/491,457,070.80 = 85,300,951.20/x
  3. Step 3: Cross multiply
    327,638,047.20x = 491,457,070.80 × 85,300,951.20
  4. Step 4: Simplify right side
    327,638,047.20x = 41,921,755,613,205,744
  5. Step 5: Solve for x
    x = 41,921,755,613,205,744/327,638,047.20
  6. Step 6: Final answer
    x = 127,951,426.80

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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.