Home / 88,578,081.60-132,867,122.40-81,187,771.20

Finding the Fourth Proportional to 88,578,081.60, 132,867,122.40 and 81,187,771.20

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Solution

The fourth proportional to 88,578,081.60, 132,867,122.40 and 81,187,771.20 is: 121,781,656.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,578,081.60 : 132,867,122.40 = 81,187,771.20 : x
  2. Step 2: Convert to fraction form
    88,578,081.60/132,867,122.40 = 81,187,771.20/x
  3. Step 3: Cross multiply
    88,578,081.60x = 132,867,122.40 × 81,187,771.20
  4. Step 4: Simplify right side
    88,578,081.60x = 10,787,185,533,413,596
  5. Step 5: Solve for x
    x = 10,787,185,533,413,596/88,578,081.60
  6. Step 6: Final answer
    x = 121,781,656.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.