Home / 12,959,422.46-17,882,470.28-7,157,858.21

Finding the Fourth Proportional to 12,959,422.46, 17,882,470.28 and 7,157,858.21

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Solution

The fourth proportional to 12,959,422.46, 17,882,470.28 and 7,157,858.21 is: 9,876,997.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,959,422.46 : 17,882,470.28 = 7,157,858.21 : x
  2. Step 2: Convert to fraction form
    12,959,422.46/17,882,470.28 = 7,157,858.21/x
  3. Step 3: Cross multiply
    12,959,422.46x = 17,882,470.28 × 7,157,858.21
  4. Step 4: Simplify right side
    12,959,422.46x = 128,000,186,583,577.34
  5. Step 5: Solve for x
    x = 128,000,186,583,577.34/12,959,422.46
  6. Step 6: Final answer
    x = 9,876,997.76

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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.