Home / 12,394,713.20-18,592,069.80-8,780,914.40

Finding the Fourth Proportional to 12,394,713.20, 18,592,069.80 and 8,780,914.40

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Solution

The fourth proportional to 12,394,713.20, 18,592,069.80 and 8,780,914.40 is: 13,171,371.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,394,713.20 : 18,592,069.80 = 8,780,914.40 : x
  2. Step 2: Convert to fraction form
    12,394,713.20/18,592,069.80 = 8,780,914.40/x
  3. Step 3: Cross multiply
    12,394,713.20x = 18,592,069.80 × 8,780,914.40
  4. Step 4: Simplify right side
    12,394,713.20x = 163,255,373,432,625.12
  5. Step 5: Solve for x
    x = 163,255,373,432,625.12/12,394,713.20
  6. Step 6: Final answer
    x = 13,171,371.60

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Similar ratio
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1.5x scale

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.