Home / 12,290,610.60-18,435,915.90-6,621,906.60

Finding the Fourth Proportional to 12,290,610.60, 18,435,915.90 and 6,621,906.60

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Solution

The fourth proportional to 12,290,610.60, 18,435,915.90 and 6,621,906.60 is: 9,932,859.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290,610.60 : 18,435,915.90 = 6,621,906.60 : x
  2. Step 2: Convert to fraction form
    12,290,610.60/18,435,915.90 = 6,621,906.60/x
  3. Step 3: Cross multiply
    12,290,610.60x = 18,435,915.90 × 6,621,906.60
  4. Step 4: Simplify right side
    12,290,610.60x = 122,080,913,175,254.92
  5. Step 5: Solve for x
    x = 122,080,913,175,254.92/12,290,610.60
  6. Step 6: Final answer
    x = 9,932,859.90

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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.