Home / 120,132,223.80-180,198,335.70-65,523,708.60

Finding the Fourth Proportional to 120,132,223.80, 180,198,335.70 and 65,523,708.60

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Solution

The fourth proportional to 120,132,223.80, 180,198,335.70 and 65,523,708.60 is: 98,285,562.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,132,223.80 : 180,198,335.70 = 65,523,708.60 : x
  2. Step 2: Convert to fraction form
    120,132,223.80/180,198,335.70 = 65,523,708.60/x
  3. Step 3: Cross multiply
    120,132,223.80x = 180,198,335.70 × 65,523,708.60
  4. Step 4: Simplify right side
    120,132,223.80x = 11,807,263,238,611,776
  5. Step 5: Solve for x
    x = 11,807,263,238,611,776/120,132,223.80
  6. Step 6: Final answer
    x = 98,285,562.90

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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.