Home / 490,321,387.92-735,495,685.04-121,841,456.16

Finding the Fourth Proportional to 490,321,387.92, 735,495,685.04 and 121,841,456.16

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Solution

The fourth proportional to 490,321,387.92, 735,495,685.04 and 121,841,456.16 is: 182,765,564.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,321,387.92 : 735,495,685.04 = 121,841,456.16 : x
  2. Step 2: Convert to fraction form
    490,321,387.92/735,495,685.04 = 121,841,456.16/x
  3. Step 3: Cross multiply
    490,321,387.92x = 735,495,685.04 × 121,841,456.16
  4. Step 4: Simplify right side
    490,321,387.92x = 89,613,865,264,670,320
  5. Step 5: Solve for x
    x = 89,613,865,264,670,320/490,321,387.92
  6. Step 6: Final answer
    x = 182,765,564.53

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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.