Home / 21,239,555.22-29,310,532.29-11,581,763.22

Finding the Fourth Proportional to 21,239,555.22, 29,310,532.29 and 11,581,763.22

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Solution

The fourth proportional to 21,239,555.22, 29,310,532.29 and 11,581,763.22 is: 15,982,803.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,239,555.22 : 29,310,532.29 = 11,581,763.22 : x
  2. Step 2: Convert to fraction form
    21,239,555.22/29,310,532.29 = 11,581,763.22/x
  3. Step 3: Cross multiply
    21,239,555.22x = 29,310,532.29 × 11,581,763.22
  4. Step 4: Simplify right side
    21,239,555.22x = 339,467,644,834,944.38
  5. Step 5: Solve for x
    x = 339,467,644,834,944.38/21,239,555.22
  6. Step 6: Final answer
    x = 15,982,803.84

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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.