Home / 13,612,305.60-20,418,458.40-12,265,988.40

Finding the Fourth Proportional to 13,612,305.60, 20,418,458.40 and 12,265,988.40

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Solution

The fourth proportional to 13,612,305.60, 20,418,458.40 and 12,265,988.40 is: 18,398,982.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612,305.60 : 20,418,458.40 = 12,265,988.40 : x
  2. Step 2: Convert to fraction form
    13,612,305.60/20,418,458.40 = 12,265,988.40/x
  3. Step 3: Cross multiply
    13,612,305.60x = 20,418,458.40 × 12,265,988.40
  4. Step 4: Simplify right side
    13,612,305.60x = 250,452,573,880,282.56
  5. Step 5: Solve for x
    x = 250,452,573,880,282.56/13,612,305.60
  6. Step 6: Final answer
    x = 18,398,982.60

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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.