Home / 8,870,405.60-13,305,608.40-7,974,610.40

Finding the Fourth Proportional to 8,870,405.60, 13,305,608.40 and 7,974,610.40

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Solution

The fourth proportional to 8,870,405.60, 13,305,608.40 and 7,974,610.40 is: 11,961,915.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,870,405.60 : 13,305,608.40 = 7,974,610.40 : x
  2. Step 2: Convert to fraction form
    8,870,405.60/13,305,608.40 = 7,974,610.40/x
  3. Step 3: Cross multiply
    8,870,405.60x = 13,305,608.40 × 7,974,610.40
  4. Step 4: Simplify right side
    8,870,405.60x = 106,107,043,124,967.38
  5. Step 5: Solve for x
    x = 106,107,043,124,967.38/8,870,405.60
  6. Step 6: Final answer
    x = 11,961,915.60

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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.