Home / 21,550,218.87-29,739,932.02-11,761,291.59

Finding the Fourth Proportional to 21,550,218.87, 29,739,932.02 and 11,761,291.59

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Solution

The fourth proportional to 21,550,218.87, 29,739,932.02 and 11,761,291.59 is: 16,230,926.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,550,218.87 : 29,739,932.02 = 11,761,291.59 : x
  2. Step 2: Convert to fraction form
    21,550,218.87/29,739,932.02 = 11,761,291.59/x
  3. Step 3: Cross multiply
    21,550,218.87x = 29,739,932.02 × 11,761,291.59
  4. Step 4: Simplify right side
    21,550,218.87x = 349,780,012,353,997.69
  5. Step 5: Solve for x
    x = 349,780,012,353,997.69/21,550,218.87
  6. Step 6: Final answer
    x = 16,230,926.21

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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.