Home / 21,481,599.88-29,644,731.12-11,692,020.70

Finding the Fourth Proportional to 21,481,599.88, 29,644,731.12 and 11,692,020.70

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Solution

The fourth proportional to 21,481,599.88, 29,644,731.12 and 11,692,020.70 is: 16,135,055.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,481,599.88 : 29,644,731.12 = 11,692,020.70 : x
  2. Step 2: Convert to fraction form
    21,481,599.88/29,644,731.12 = 11,692,020.70/x
  3. Step 3: Cross multiply
    21,481,599.88x = 29,644,731.12 × 11,692,020.70
  4. Step 4: Simplify right side
    21,481,599.88x = 346,606,809,900,974.19
  5. Step 5: Solve for x
    x = 346,606,809,900,974.19/21,481,599.88
  6. Step 6: Final answer
    x = 16,135,055.67

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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.