Home / 80,926,002.85-121,389,004.28-79,582,310.05

Finding the Fourth Proportional to 80,926,002.85, 121,389,004.28 and 79,582,310.05

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Solution

The fourth proportional to 80,926,002.85, 121,389,004.28 and 79,582,310.05 is: 119,373,465.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,926,002.85 : 121,389,004.28 = 79,582,310.05 : x
  2. Step 2: Convert to fraction form
    80,926,002.85/121,389,004.28 = 79,582,310.05/x
  3. Step 3: Cross multiply
    80,926,002.85x = 121,389,004.28 × 79,582,310.05
  4. Step 4: Simplify right side
    80,926,002.85x = 9,660,417,374,873,826
  5. Step 5: Solve for x
    x = 9,660,417,374,873,826/80,926,002.85
  6. Step 6: Final answer
    x = 119,373,465.08

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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.