Home / 80,414,200.80-120,621,301.20-67,021,887.60

Finding the Fourth Proportional to 80,414,200.80, 120,621,301.20 and 67,021,887.60

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Solution

The fourth proportional to 80,414,200.80, 120,621,301.20 and 67,021,887.60 is: 100,532,831.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,414,200.80 : 120,621,301.20 = 67,021,887.60 : x
  2. Step 2: Convert to fraction form
    80,414,200.80/120,621,301.20 = 67,021,887.60/x
  3. Step 3: Cross multiply
    80,414,200.80x = 120,621,301.20 × 67,021,887.60
  4. Step 4: Simplify right side
    80,414,200.80x = 8,084,267,291,192,145
  5. Step 5: Solve for x
    x = 8,084,267,291,192,145/80,414,200.80
  6. Step 6: Final answer
    x = 100,532,831.40

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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.