Home / 18,381,478.40-27,572,217.60-12,641,915.60

Finding the Fourth Proportional to 18,381,478.40, 27,572,217.60 and 12,641,915.60

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Solution

The fourth proportional to 18,381,478.40, 27,572,217.60 and 12,641,915.60 is: 18,962,873.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381,478.40 : 27,572,217.60 = 12,641,915.60 : x
  2. Step 2: Convert to fraction form
    18,381,478.40/27,572,217.60 = 12,641,915.60/x
  3. Step 3: Cross multiply
    18,381,478.40x = 27,572,217.60 × 12,641,915.60
  4. Step 4: Simplify right side
    18,381,478.40x = 348,565,647,804,034.56
  5. Step 5: Solve for x
    x = 348,565,647,804,034.56/18,381,478.40
  6. Step 6: Final answer
    x = 18,962,873.40

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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.