Home / 80,926,009.60-121,389,014.40-79,582,316.80

Finding the Fourth Proportional to 80,926,009.60, 121,389,014.40 and 79,582,316.80

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Solution

The fourth proportional to 80,926,009.60, 121,389,014.40 and 79,582,316.80 is: 119,373,475.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,926,009.60 : 121,389,014.40 = 79,582,316.80 : x
  2. Step 2: Convert to fraction form
    80,926,009.60/121,389,014.40 = 79,582,316.80/x
  3. Step 3: Cross multiply
    80,926,009.60x = 121,389,014.40 × 79,582,316.80
  4. Step 4: Simplify right side
    80,926,009.60x = 9,660,419,000,020,562
  5. Step 5: Solve for x
    x = 9,660,419,000,020,562/80,926,009.60
  6. Step 6: Final answer
    x = 119,373,475.20

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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.