Home / 12,154,209.60-18,231,314.40-4,961,020.80

Finding the Fourth Proportional to 12,154,209.60, 18,231,314.40 and 4,961,020.80

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Solution

The fourth proportional to 12,154,209.60, 18,231,314.40 and 4,961,020.80 is: 7,441,531.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,154,209.60 : 18,231,314.40 = 4,961,020.80 : x
  2. Step 2: Convert to fraction form
    12,154,209.60/18,231,314.40 = 4,961,020.80/x
  3. Step 3: Cross multiply
    12,154,209.60x = 18,231,314.40 × 4,961,020.80
  4. Step 4: Simplify right side
    12,154,209.60x = 90,445,929,949,739.52
  5. Step 5: Solve for x
    x = 90,445,929,949,739.52/12,154,209.60
  6. Step 6: Final answer
    x = 7,441,531.20

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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.