Home / 91,863,217.60-137,794,826.40-81,818,982.70

Finding the Fourth Proportional to 91,863,217.60, 137,794,826.40 and 81,818,982.70

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Solution

The fourth proportional to 91,863,217.60, 137,794,826.40 and 81,818,982.70 is: 122,728,474.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,863,217.60 : 137,794,826.40 = 81,818,982.70 : x
  2. Step 2: Convert to fraction form
    91,863,217.60/137,794,826.40 = 81,818,982.70/x
  3. Step 3: Cross multiply
    91,863,217.60x = 137,794,826.40 × 81,818,982.70
  4. Step 4: Simplify right side
    91,863,217.60x = 11,274,232,517,371,104
  5. Step 5: Solve for x
    x = 11,274,232,517,371,104/91,863,217.60
  6. Step 6: Final answer
    x = 122,728,474.05

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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.