Home / 8,259,689.50-12,389,778.47-3,942,194.60

Finding the Fourth Proportional to 8,259,689.50, 12,389,778.47 and 3,942,194.60

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Solution

The fourth proportional to 8,259,689.50, 12,389,778.47 and 3,942,194.60 is: 5,913,408.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,259,689.50 : 12,389,778.47 = 3,942,194.60 : x
  2. Step 2: Convert to fraction form
    8,259,689.50/12,389,778.47 = 3,942,194.60/x
  3. Step 3: Cross multiply
    8,259,689.50x = 12,389,778.47 × 3,942,194.60
  4. Step 4: Simplify right side
    8,259,689.50x = 48,842,917,820,460.20
  5. Step 5: Solve for x
    x = 48,842,917,820,460.20/8,259,689.50
  6. Step 6: Final answer
    x = 5,913,408.47

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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.