Home / 91,619,378.34-137,129,976.62-67,351,882.02

Finding the Fourth Proportional to 91,619,378.34, 137,129,976.62 and 67,351,882.02

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Solution

The fourth proportional to 91,619,378.34, 137,129,976.62 and 67,351,882.02 is: 100,807,953.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,619,378.34 : 137,129,976.62 = 67,351,882.02 : x
  2. Step 2: Convert to fraction form
    91,619,378.34/137,129,976.62 = 67,351,882.02/x
  3. Step 3: Cross multiply
    91,619,378.34x = 137,129,976.62 × 67,351,882.02
  4. Step 4: Simplify right side
    91,619,378.34x = 9,235,962,006,715,598
  5. Step 5: Solve for x
    x = 9,235,962,006,715,598/91,619,378.34
  6. Step 6: Final answer
    x = 100,807,953.23

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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.