Home / 8,136,085.60-12,204,128.40-7,222,794.40

Finding the Fourth Proportional to 8,136,085.60, 12,204,128.40 and 7,222,794.40

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Solution

The fourth proportional to 8,136,085.60, 12,204,128.40 and 7,222,794.40 is: 10,834,191.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,136,085.60 : 12,204,128.40 = 7,222,794.40 : x
  2. Step 2: Convert to fraction form
    8,136,085.60/12,204,128.40 = 7,222,794.40/x
  3. Step 3: Cross multiply
    8,136,085.60x = 12,204,128.40 × 7,222,794.40
  4. Step 4: Simplify right side
    8,136,085.60x = 88,147,910,264,400.97
  5. Step 5: Solve for x
    x = 88,147,910,264,400.97/8,136,085.60
  6. Step 6: Final answer
    x = 10,834,191.60

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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.