Home / 87,817,429.64-121,187,932.91-48,661,741.28

Finding the Fourth Proportional to 87,817,429.64, 121,187,932.91 and 48,661,741.28

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Solution

The fourth proportional to 87,817,429.64, 121,187,932.91 and 48,661,741.28 is: 67,153,136.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,817,429.64 : 121,187,932.91 = 48,661,741.28 : x
  2. Step 2: Convert to fraction form
    87,817,429.64/121,187,932.91 = 48,661,741.28/x
  3. Step 3: Cross multiply
    87,817,429.64x = 121,187,932.91 × 48,661,741.28
  4. Step 4: Simplify right side
    87,817,429.64x = 5,897,215,836,675,169
  5. Step 5: Solve for x
    x = 5,897,215,836,675,169/87,817,429.64
  6. Step 6: Final answer
    x = 67,153,136.47

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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.