Home / 8,321,205.60-12,481,808.40-6,902,863.20

Finding the Fourth Proportional to 8,321,205.60, 12,481,808.40 and 6,902,863.20

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Solution

The fourth proportional to 8,321,205.60, 12,481,808.40 and 6,902,863.20 is: 10,354,294.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321,205.60 : 12,481,808.40 = 6,902,863.20 : x
  2. Step 2: Convert to fraction form
    8,321,205.60/12,481,808.40 = 6,902,863.20/x
  3. Step 3: Cross multiply
    8,321,205.60x = 12,481,808.40 × 6,902,863.20
  4. Step 4: Simplify right side
    8,321,205.60x = 86,160,215,873,810.89
  5. Step 5: Solve for x
    x = 86,160,215,873,810.89/8,321,205.60
  6. Step 6: Final answer
    x = 10,354,294.80

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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.