Home / 91,542,868.40-137,538,251.40-68,868,052.40

Finding the Fourth Proportional to 91,542,868.40, 137,538,251.40 and 68,868,052.40

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Solution

The fourth proportional to 91,542,868.40, 137,538,251.40 and 68,868,052.40 is: 103,470,556.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,542,868.40 : 137,538,251.40 = 68,868,052.40 : x
  2. Step 2: Convert to fraction form
    91,542,868.40/137,538,251.40 = 68,868,052.40/x
  3. Step 3: Cross multiply
    91,542,868.40x = 137,538,251.40 × 68,868,052.40
  4. Step 4: Simplify right side
    91,542,868.40x = 9,471,991,504,419,574
  5. Step 5: Solve for x
    x = 9,471,991,504,419,574/91,542,868.40
  6. Step 6: Final answer
    x = 103,470,556.14

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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.