Home / 8,208,043.80-12,312,065.70-7,767,144.60

Finding the Fourth Proportional to 8,208,043.80, 12,312,065.70 and 7,767,144.60

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Solution

The fourth proportional to 8,208,043.80, 12,312,065.70 and 7,767,144.60 is: 11,650,716.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208,043.80 : 12,312,065.70 = 7,767,144.60 : x
  2. Step 2: Convert to fraction form
    8,208,043.80/12,312,065.70 = 7,767,144.60/x
  3. Step 3: Cross multiply
    8,208,043.80x = 12,312,065.70 × 7,767,144.60
  4. Step 4: Simplify right side
    8,208,043.80x = 95,629,594,616,600.20
  5. Step 5: Solve for x
    x = 95,629,594,616,600.20/8,208,043.80
  6. Step 6: Final answer
    x = 11,650,716.90

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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.