Home / 485,017,501.20-727,515,747.55-135,254,236.68

Finding the Fourth Proportional to 485,017,501.20, 727,515,747.55 and 135,254,236.68

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Solution

The fourth proportional to 485,017,501.20, 727,515,747.55 and 135,254,236.68 is: 202,878,425.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,017,501.20 : 727,515,747.55 = 135,254,236.68 : x
  2. Step 2: Convert to fraction form
    485,017,501.20/727,515,747.55 = 135,254,236.68/x
  3. Step 3: Cross multiply
    485,017,501.20x = 727,515,747.55 × 135,254,236.68
  4. Step 4: Simplify right side
    485,017,501.20x = 98,399,587,107,554,832
  5. Step 5: Solve for x
    x = 98,399,587,107,554,832/485,017,501.20
  6. Step 6: Final answer
    x = 202,878,425.76

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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.