Home / 69,186,499.57-103,801,337.75-20,666,267.97

Finding the Fourth Proportional to 69,186,499.57, 103,801,337.75 and 20,666,267.97

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Solution

The fourth proportional to 69,186,499.57, 103,801,337.75 and 20,666,267.97 is: 31,005,850.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,186,499.57 : 103,801,337.75 = 20,666,267.97 : x
  2. Step 2: Convert to fraction form
    69,186,499.57/103,801,337.75 = 20,666,267.97/x
  3. Step 3: Cross multiply
    69,186,499.57x = 103,801,337.75 × 20,666,267.97
  4. Step 4: Simplify right side
    69,186,499.57x = 2,145,186,261,585,976.75
  5. Step 5: Solve for x
    x = 2,145,186,261,585,976.75/69,186,499.57
  6. Step 6: Final answer
    x = 31,005,850.49

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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.