Home / 13,813,193.60-20,719,790.40-8,438,422.40

Finding the Fourth Proportional to 13,813,193.60, 20,719,790.40 and 8,438,422.40

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Solution

The fourth proportional to 13,813,193.60, 20,719,790.40 and 8,438,422.40 is: 12,657,633.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,813,193.60 : 20,719,790.40 = 8,438,422.40 : x
  2. Step 2: Convert to fraction form
    13,813,193.60/20,719,790.40 = 8,438,422.40/x
  3. Step 3: Cross multiply
    13,813,193.60x = 20,719,790.40 × 8,438,422.40
  4. Step 4: Simplify right side
    13,813,193.60x = 174,842,343,434,664.97
  5. Step 5: Solve for x
    x = 174,842,343,434,664.97/13,813,193.60
  6. Step 6: Final answer
    x = 12,657,633.60

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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.