Home / 20,128,538.80-27,777,701.28-10,961,174.80

Finding the Fourth Proportional to 20,128,538.80, 27,777,701.28 and 10,961,174.80

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Solution

The fourth proportional to 20,128,538.80, 27,777,701.28 and 10,961,174.80 is: 15,126,594.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,128,538.80 : 27,777,701.28 = 10,961,174.80 : x
  2. Step 2: Convert to fraction form
    20,128,538.80/27,777,701.28 = 10,961,174.80/x
  3. Step 3: Cross multiply
    20,128,538.80x = 27,777,701.28 × 10,961,174.80
  4. Step 4: Simplify right side
    20,128,538.80x = 304,476,239,272,263.75
  5. Step 5: Solve for x
    x = 304,476,239,272,263.75/20,128,538.80
  6. Step 6: Final answer
    x = 15,126,594.25

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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.