Home / 485,182,187.99-669,874,610.27-287,007,346.97

Finding the Fourth Proportional to 485,182,187.99, 669,874,610.27 and 287,007,346.97

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Solution

The fourth proportional to 485,182,187.99, 669,874,610.27 and 287,007,346.97 is: 396,261,320.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,182,187.99 : 669,874,610.27 = 287,007,346.97 : x
  2. Step 2: Convert to fraction form
    485,182,187.99/669,874,610.27 = 287,007,346.97/x
  3. Step 3: Cross multiply
    485,182,187.99x = 669,874,610.27 × 287,007,346.97
  4. Step 4: Simplify right side
    485,182,187.99x = 192,258,934,694,720,384
  5. Step 5: Solve for x
    x = 192,258,934,694,720,384/485,182,187.99
  6. Step 6: Final answer
    x = 396,261,320.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.