Home / 90,958,500.80-136,437,751.20-36,344,080.70

Finding the Fourth Proportional to 90,958,500.80, 136,437,751.20 and 36,344,080.70

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Solution

The fourth proportional to 90,958,500.80, 136,437,751.20 and 36,344,080.70 is: 54,516,121.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,958,500.80 : 136,437,751.20 = 36,344,080.70 : x
  2. Step 2: Convert to fraction form
    90,958,500.80/136,437,751.20 = 36,344,080.70/x
  3. Step 3: Cross multiply
    90,958,500.80x = 136,437,751.20 × 36,344,080.70
  4. Step 4: Simplify right side
    90,958,500.80x = 4,958,704,640,139,322
  5. Step 5: Solve for x
    x = 4,958,704,640,139,322/90,958,500.80
  6. Step 6: Final answer
    x = 54,516,121.05

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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.