Home / 18,799,286.40-28,198,929.60-12,416,745.60

Finding the Fourth Proportional to 18,799,286.40, 28,198,929.60 and 12,416,745.60

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Solution

The fourth proportional to 18,799,286.40, 28,198,929.60 and 12,416,745.60 is: 18,625,118.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,799,286.40 : 28,198,929.60 = 12,416,745.60 : x
  2. Step 2: Convert to fraction form
    18,799,286.40/28,198,929.60 = 12,416,745.60/x
  3. Step 3: Cross multiply
    18,799,286.40x = 28,198,929.60 × 12,416,745.60
  4. Step 4: Simplify right side
    18,799,286.40x = 350,138,935,035,509.75
  5. Step 5: Solve for x
    x = 350,138,935,035,509.75/18,799,286.40
  6. Step 6: Final answer
    x = 18,625,118.40

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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.