Home / 8,690,200.80-13,039,966.80-3,642,021.60

Finding the Fourth Proportional to 8,690,200.80, 13,039,966.80 and 3,642,021.60

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Solution

The fourth proportional to 8,690,200.80, 13,039,966.80 and 3,642,021.60 is: 5,464,987.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690,200.80 : 13,039,966.80 = 3,642,021.60 : x
  2. Step 2: Convert to fraction form
    8,690,200.80/13,039,966.80 = 3,642,021.60/x
  3. Step 3: Cross multiply
    8,690,200.80x = 13,039,966.80 × 3,642,021.60
  4. Step 4: Simplify right side
    8,690,200.80x = 47,491,840,748,882.88
  5. Step 5: Solve for x
    x = 47,491,840,748,882.88/8,690,200.80
  6. Step 6: Final answer
    x = 5,464,987.73

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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.