Home / 91,034,472.40-136,551,708.60-80,511,940.60

Finding the Fourth Proportional to 91,034,472.40, 136,551,708.60 and 80,511,940.60

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Solution

The fourth proportional to 91,034,472.40, 136,551,708.60 and 80,511,940.60 is: 120,767,910.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,034,472.40 : 136,551,708.60 = 80,511,940.60 : x
  2. Step 2: Convert to fraction form
    91,034,472.40/136,551,708.60 = 80,511,940.60/x
  3. Step 3: Cross multiply
    91,034,472.40x = 136,551,708.60 × 80,511,940.60
  4. Step 4: Simplify right side
    91,034,472.40x = 10,994,043,051,631,708
  5. Step 5: Solve for x
    x = 10,994,043,051,631,708/91,034,472.40
  6. Step 6: Final answer
    x = 120,767,910.90

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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.