Home / 18,794,385.20-28,172,915.40-8,679,364.40

Finding the Fourth Proportional to 18,794,385.20, 28,172,915.40 and 8,679,364.40

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Solution

The fourth proportional to 18,794,385.20, 28,172,915.40 and 8,679,364.40 is: 13,010,428.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794,385.20 : 28,172,915.40 = 8,679,364.40 : x
  2. Step 2: Convert to fraction form
    18,794,385.20/28,172,915.40 = 8,679,364.40/x
  3. Step 3: Cross multiply
    18,794,385.20x = 28,172,915.40 × 8,679,364.40
  4. Step 4: Simplify right side
    18,794,385.20x = 244,522,998,966,971.75
  5. Step 5: Solve for x
    x = 244,522,998,966,971.75/18,794,385.20
  6. Step 6: Final answer
    x = 13,010,428.19

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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.