Home / 13,392,947.20-18,486,200.54-8,747,442.42

Finding the Fourth Proportional to 13,392,947.20, 18,486,200.54 and 8,747,442.42

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Solution

The fourth proportional to 13,392,947.20, 18,486,200.54 and 8,747,442.42 is: 12,074,039.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392,947.20 : 18,486,200.54 = 8,747,442.42 : x
  2. Step 2: Convert to fraction form
    13,392,947.20/18,486,200.54 = 8,747,442.42/x
  3. Step 3: Cross multiply
    13,392,947.20x = 18,486,200.54 × 8,747,442.42
  4. Step 4: Simplify right side
    13,392,947.20x = 161,706,974,810,091.50
  5. Step 5: Solve for x
    x = 161,706,974,810,091.50/13,392,947.20
  6. Step 6: Final answer
    x = 12,074,039.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.