Home / 91,002,145.20-136,503,217.80-65,492,977.20

Finding the Fourth Proportional to 91,002,145.20, 136,503,217.80 and 65,492,977.20

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Solution

The fourth proportional to 91,002,145.20, 136,503,217.80 and 65,492,977.20 is: 98,239,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,002,145.20 : 136,503,217.80 = 65,492,977.20 : x
  2. Step 2: Convert to fraction form
    91,002,145.20/136,503,217.80 = 65,492,977.20/x
  3. Step 3: Cross multiply
    91,002,145.20x = 136,503,217.80 × 65,492,977.20
  4. Step 4: Simplify right side
    91,002,145.20x = 8,940,002,131,102,035
  5. Step 5: Solve for x
    x = 8,940,002,131,102,035/91,002,145.20
  6. Step 6: Final answer
    x = 98,239,465.80

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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.