Home / 18,947,319.60-28,420,979.40-17,678,276.40

Finding the Fourth Proportional to 18,947,319.60, 28,420,979.40 and 17,678,276.40

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Solution

The fourth proportional to 18,947,319.60, 28,420,979.40 and 17,678,276.40 is: 26,517,414.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,947,319.60 : 28,420,979.40 = 17,678,276.40 : x
  2. Step 2: Convert to fraction form
    18,947,319.60/28,420,979.40 = 17,678,276.40/x
  3. Step 3: Cross multiply
    18,947,319.60x = 28,420,979.40 × 17,678,276.40
  4. Step 4: Simplify right side
    18,947,319.60x = 502,433,929,391,906.06
  5. Step 5: Solve for x
    x = 502,433,929,391,906.06/18,947,319.60
  6. Step 6: Final answer
    x = 26,517,414.60

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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.