Home / 87,817,406.40-121,187,901.60-48,661,719.12

Finding the Fourth Proportional to 87,817,406.40, 121,187,901.60 and 48,661,719.12

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Solution

The fourth proportional to 87,817,406.40, 121,187,901.60 and 48,661,719.12 is: 67,153,106.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,817,406.40 : 121,187,901.60 = 48,661,719.12 : x
  2. Step 2: Convert to fraction form
    87,817,406.40/121,187,901.60 = 48,661,719.12/x
  3. Step 3: Cross multiply
    87,817,406.40x = 121,187,901.60 × 48,661,719.12
  4. Step 4: Simplify right side
    87,817,406.40x = 5,897,211,628,401,398
  5. Step 5: Solve for x
    x = 5,897,211,628,401,398/87,817,406.40
  6. Step 6: Final answer
    x = 67,153,106.32

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