Home / 21,356,213.76-29,447,959.76-13,608,984.96

Finding the Fourth Proportional to 21,356,213.76, 29,447,959.76 and 13,608,984.96

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Solution

The fourth proportional to 21,356,213.76, 29,447,959.76 and 13,608,984.96 is: 18,765,350.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,356,213.76 : 29,447,959.76 = 13,608,984.96 : x
  2. Step 2: Convert to fraction form
    21,356,213.76/29,447,959.76 = 13,608,984.96/x
  3. Step 3: Cross multiply
    21,356,213.76x = 29,447,959.76 × 13,608,984.96
  4. Step 4: Simplify right side
    21,356,213.76x = 400,756,841,476,525.25
  5. Step 5: Solve for x
    x = 400,756,841,476,525.25/21,356,213.76
  6. Step 6: Final answer
    x = 18,765,350.73

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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.