Home / 10,968,131.76-15,137,693.28-6,838,836

Finding the Fourth Proportional to 10,968,131.76, 15,137,693.28 and 6,838,836

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Solution

The fourth proportional to 10,968,131.76, 15,137,693.28 and 6,838,836 is: 9,438,635.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,968,131.76 : 15,137,693.28 = 6,838,836 : x
  2. Step 2: Convert to fraction form
    10,968,131.76/15,137,693.28 = 6,838,836/x
  3. Step 3: Cross multiply
    10,968,131.76x = 15,137,693.28 × 6,838,836
  4. Step 4: Simplify right side
    10,968,131.76x = 103,524,201,760,222.08
  5. Step 5: Solve for x
    x = 103,524,201,760,222.08/10,968,131.76
  6. Step 6: Final answer
    x = 9,438,635.86

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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.