Home / 87,817,431.64-121,187,935.66-48,661,743.28

Finding the Fourth Proportional to 87,817,431.64, 121,187,935.66 and 48,661,743.28

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Solution

The fourth proportional to 87,817,431.64, 121,187,935.66 and 48,661,743.28 is: 67,153,139.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,817,431.64 : 121,187,935.66 = 48,661,743.28 : x
  2. Step 2: Convert to fraction form
    87,817,431.64/121,187,935.66 = 48,661,743.28/x
  3. Step 3: Cross multiply
    87,817,431.64x = 121,187,935.66 × 48,661,743.28
  4. Step 4: Simplify right side
    87,817,431.64x = 5,897,216,213,720,077
  5. Step 5: Solve for x
    x = 5,897,216,213,720,077/87,817,431.64
  6. Step 6: Final answer
    x = 67,153,139.23

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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.