Home / 485,055,308.74-727,588,736.85-135,280,095.51

Finding the Fourth Proportional to 485,055,308.74, 727,588,736.85 and 135,280,095.51

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Solution

The fourth proportional to 485,055,308.74, 727,588,736.85 and 135,280,095.51 is: 202,921,753.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,055,308.74 : 727,588,736.85 = 135,280,095.51 : x
  2. Step 2: Convert to fraction form
    485,055,308.74/727,588,736.85 = 135,280,095.51/x
  3. Step 3: Cross multiply
    485,055,308.74x = 727,588,736.85 × 135,280,095.51
  4. Step 4: Simplify right side
    485,055,308.74x = 98,428,273,810,992,400
  5. Step 5: Solve for x
    x = 98,428,273,810,992,400/485,055,308.74
  6. Step 6: Final answer
    x = 202,921,753.54

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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.