Home / 12,387,580.80-18,581,371.20-8,968,643.70

Finding the Fourth Proportional to 12,387,580.80, 18,581,371.20 and 8,968,643.70

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Solution

The fourth proportional to 12,387,580.80, 18,581,371.20 and 8,968,643.70 is: 13,452,965.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387,580.80 : 18,581,371.20 = 8,968,643.70 : x
  2. Step 2: Convert to fraction form
    12,387,580.80/18,581,371.20 = 8,968,643.70/x
  3. Step 3: Cross multiply
    12,387,580.80x = 18,581,371.20 × 8,968,643.70
  4. Step 4: Simplify right side
    12,387,580.80x = 166,649,697,750,241.41
  5. Step 5: Solve for x
    x = 166,649,697,750,241.41/12,387,580.80
  6. Step 6: Final answer
    x = 13,452,965.55

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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.