Home / 80,611,991.20-120,933,733.20-32,081,586.40

Finding the Fourth Proportional to 80,611,991.20, 120,933,733.20 and 32,081,586.40

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Solution

The fourth proportional to 80,611,991.20, 120,933,733.20 and 32,081,586.40 is: 48,128,646.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,611,991.20 : 120,933,733.20 = 32,081,586.40 : x
  2. Step 2: Convert to fraction form
    80,611,991.20/120,933,733.20 = 32,081,586.40/x
  3. Step 3: Cross multiply
    80,611,991.20x = 120,933,733.20 × 32,081,586.40
  4. Step 4: Simplify right side
    80,611,991.20x = 3,879,746,010,330,348.50
  5. Step 5: Solve for x
    x = 3,879,746,010,330,348.50/80,611,991.20
  6. Step 6: Final answer
    x = 48,128,646.28

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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.