Home / 5,378,285.60-8,067,428.40-3,107,693.60

Finding the Fourth Proportional to 5,378,285.60, 8,067,428.40 and 3,107,693.60

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Solution

The fourth proportional to 5,378,285.60, 8,067,428.40 and 3,107,693.60 is: 4,661,540.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378,285.60 : 8,067,428.40 = 3,107,693.60 : x
  2. Step 2: Convert to fraction form
    5,378,285.60/8,067,428.40 = 3,107,693.60/x
  3. Step 3: Cross multiply
    5,378,285.60x = 8,067,428.40 × 3,107,693.60
  4. Step 4: Simplify right side
    5,378,285.60x = 25,071,095,607,138.24
  5. Step 5: Solve for x
    x = 25,071,095,607,138.24/5,378,285.60
  6. Step 6: Final answer
    x = 4,661,540.40

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Double scale
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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.