Home / 100,609,112.20-150,913,668.30-80,453,720.20

Finding the Fourth Proportional to 100,609,112.20, 150,913,668.30 and 80,453,720.20

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Solution

The fourth proportional to 100,609,112.20, 150,913,668.30 and 80,453,720.20 is: 120,680,580.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,609,112.20 : 150,913,668.30 = 80,453,720.20 : x
  2. Step 2: Convert to fraction form
    100,609,112.20/150,913,668.30 = 80,453,720.20/x
  3. Step 3: Cross multiply
    100,609,112.20x = 150,913,668.30 × 80,453,720.20
  4. Step 4: Simplify right side
    100,609,112.20x = 12,141,566,043,763,812
  5. Step 5: Solve for x
    x = 12,141,566,043,763,812/100,609,112.20
  6. Step 6: Final answer
    x = 120,680,580.30

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1.5x scale

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.