Home / 8,258,085.60-12,387,128.40-2,192,805.60

Finding the Fourth Proportional to 8,258,085.60, 12,387,128.40 and 2,192,805.60

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Solution

The fourth proportional to 8,258,085.60, 12,387,128.40 and 2,192,805.60 is: 3,289,208.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,258,085.60 : 12,387,128.40 = 2,192,805.60 : x
  2. Step 2: Convert to fraction form
    8,258,085.60/12,387,128.40 = 2,192,805.60/x
  3. Step 3: Cross multiply
    8,258,085.60x = 12,387,128.40 × 2,192,805.60
  4. Step 4: Simplify right side
    8,258,085.60x = 27,162,564,523,439.04
  5. Step 5: Solve for x
    x = 27,162,564,523,439.04/8,258,085.60
  6. Step 6: Final answer
    x = 3,289,208.40

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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.