Home / 120,267,057.80-180,400,586.70-83,987,352.20

Finding the Fourth Proportional to 120,267,057.80, 180,400,586.70 and 83,987,352.20

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Solution

The fourth proportional to 120,267,057.80, 180,400,586.70 and 83,987,352.20 is: 125,981,028.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,267,057.80 : 180,400,586.70 = 83,987,352.20 : x
  2. Step 2: Convert to fraction form
    120,267,057.80/180,400,586.70 = 83,987,352.20/x
  3. Step 3: Cross multiply
    120,267,057.80x = 180,400,586.70 × 83,987,352.20
  4. Step 4: Simplify right side
    120,267,057.80x = 15,151,367,612,259,536
  5. Step 5: Solve for x
    x = 15,151,367,612,259,536/120,267,057.80
  6. Step 6: Final answer
    x = 125,981,028.30

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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.