Home / 15,198,963.75-20,968,373.48-8,999,401.95

Finding the Fourth Proportional to 15,198,963.75, 20,968,373.48 and 8,999,401.95

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Solution

The fourth proportional to 15,198,963.75, 20,968,373.48 and 8,999,401.95 is: 12,415,505.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,198,963.75 : 20,968,373.48 = 8,999,401.95 : x
  2. Step 2: Convert to fraction form
    15,198,963.75/20,968,373.48 = 8,999,401.95/x
  3. Step 3: Cross multiply
    15,198,963.75x = 20,968,373.48 × 8,999,401.95
  4. Step 4: Simplify right side
    15,198,963.75x = 188,702,821,139,243.28
  5. Step 5: Solve for x
    x = 188,702,821,139,243.28/15,198,963.75
  6. Step 6: Final answer
    x = 12,415,505.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.