Home / 87,824,716.47-121,253,198.43-56,517,160

Finding the Fourth Proportional to 87,824,716.47, 121,253,198.43 and 56,517,160

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Solution

The fourth proportional to 87,824,716.47, 121,253,198.43 and 56,517,160 is: 78,029,132.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,824,716.47 : 121,253,198.43 = 56,517,160 : x
  2. Step 2: Convert to fraction form
    87,824,716.47/121,253,198.43 = 56,517,160/x
  3. Step 3: Cross multiply
    87,824,716.47x = 121,253,198.43 × 56,517,160
  4. Step 4: Simplify right side
    87,824,716.47x = 6,852,886,416,180,059
  5. Step 5: Solve for x
    x = 6,852,886,416,180,059/87,824,716.47
  6. Step 6: Final answer
    x = 78,029,132.25

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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.