Home / 13,025,728.87-17,963,743.20-8,131,405.12

Finding the Fourth Proportional to 13,025,728.87, 17,963,743.20 and 8,131,405.12

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Solution

The fourth proportional to 13,025,728.87, 17,963,743.20 and 8,131,405.12 is: 11,213,996.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,025,728.87 : 17,963,743.20 = 8,131,405.12 : x
  2. Step 2: Convert to fraction form
    13,025,728.87/17,963,743.20 = 8,131,405.12/x
  3. Step 3: Cross multiply
    13,025,728.87x = 17,963,743.20 × 8,131,405.12
  4. Step 4: Simplify right side
    13,025,728.87x = 146,070,473,341,026.47
  5. Step 5: Solve for x
    x = 146,070,473,341,026.47/13,025,728.87
  6. Step 6: Final answer
    x = 11,213,996.15

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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.