Home / 89,017,817.80-133,526,726.70-80,231,326.60

Finding the Fourth Proportional to 89,017,817.80, 133,526,726.70 and 80,231,326.60

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Solution

The fourth proportional to 89,017,817.80, 133,526,726.70 and 80,231,326.60 is: 120,346,989.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,017,817.80 : 133,526,726.70 = 80,231,326.60 : x
  2. Step 2: Convert to fraction form
    89,017,817.80/133,526,726.70 = 80,231,326.60/x
  3. Step 3: Cross multiply
    89,017,817.80x = 133,526,726.70 × 80,231,326.60
  4. Step 4: Simplify right side
    89,017,817.80x = 10,713,026,419,696,640
  5. Step 5: Solve for x
    x = 10,713,026,419,696,640/89,017,817.80
  6. Step 6: Final answer
    x = 120,346,989.90

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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.