Home / 82,186,108.70-123,043,233.45-79,826,812.70

Finding the Fourth Proportional to 82,186,108.70, 123,043,233.45 and 79,826,812.70

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Solution

The fourth proportional to 82,186,108.70, 123,043,233.45 and 79,826,812.70 is: 119,511,062.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,186,108.70 : 123,043,233.45 = 79,826,812.70 : x
  2. Step 2: Convert to fraction form
    82,186,108.70/123,043,233.45 = 79,826,812.70/x
  3. Step 3: Cross multiply
    82,186,108.70x = 123,043,233.45 × 79,826,812.70
  4. Step 4: Simplify right side
    82,186,108.70x = 9,822,149,150,615,526
  5. Step 5: Solve for x
    x = 9,822,149,150,615,526/82,186,108.70
  6. Step 6: Final answer
    x = 119,511,062.22

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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.