Home / 80,926,039.60-121,389,059.40-79,582,346.80

Finding the Fourth Proportional to 80,926,039.60, 121,389,059.40 and 79,582,346.80

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Solution

The fourth proportional to 80,926,039.60, 121,389,059.40 and 79,582,346.80 is: 119,373,520.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,926,039.60 : 121,389,059.40 = 79,582,346.80 : x
  2. Step 2: Convert to fraction form
    80,926,039.60/121,389,059.40 = 79,582,346.80/x
  3. Step 3: Cross multiply
    80,926,039.60x = 121,389,059.40 × 79,582,346.80
  4. Step 4: Simplify right side
    80,926,039.60x = 9,660,426,222,896,600
  5. Step 5: Solve for x
    x = 9,660,426,222,896,600/80,926,039.60
  6. Step 6: Final answer
    x = 119,373,520.20

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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.