Home / 21,705,419.88-29,953,405.38-11,915,620.20

Finding the Fourth Proportional to 21,705,419.88, 29,953,405.38 and 11,915,620.20

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Solution

The fourth proportional to 21,705,419.88, 29,953,405.38 and 11,915,620.20 is: 16,443,515.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,705,419.88 : 29,953,405.38 = 11,915,620.20 : x
  2. Step 2: Convert to fraction form
    21,705,419.88/29,953,405.38 = 11,915,620.20/x
  3. Step 3: Cross multiply
    21,705,419.88x = 29,953,405.38 × 11,915,620.20
  4. Step 4: Simplify right side
    21,705,419.88x = 356,913,402,204,716.62
  5. Step 5: Solve for x
    x = 356,913,402,204,716.62/21,705,419.88
  6. Step 6: Final answer
    x = 16,443,515.22

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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.