Home / 80,233,670.80-120,350,506.20-79,477,843.60

Finding the Fourth Proportional to 80,233,670.80, 120,350,506.20 and 79,477,843.60

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Solution

The fourth proportional to 80,233,670.80, 120,350,506.20 and 79,477,843.60 is: 119,216,765.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,233,670.80 : 120,350,506.20 = 79,477,843.60 : x
  2. Step 2: Convert to fraction form
    80,233,670.80/120,350,506.20 = 79,477,843.60/x
  3. Step 3: Cross multiply
    80,233,670.80x = 120,350,506.20 × 79,477,843.60
  4. Step 4: Simplify right side
    80,233,670.80x = 9,565,198,708,944,430
  5. Step 5: Solve for x
    x = 9,565,198,708,944,430/80,233,670.80
  6. Step 6: Final answer
    x = 119,216,765.40

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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.