Home / 21,580,517.80-29,780,762.28-11,790,751.28

Finding the Fourth Proportional to 21,580,517.80, 29,780,762.28 and 11,790,751.28

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Solution

The fourth proportional to 21,580,517.80, 29,780,762.28 and 11,790,751.28 is: 16,271,044.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,580,517.80 : 29,780,762.28 = 11,790,751.28 : x
  2. Step 2: Convert to fraction form
    21,580,517.80/29,780,762.28 = 11,790,751.28/x
  3. Step 3: Cross multiply
    21,580,517.80x = 29,780,762.28 × 11,790,751.28
  4. Step 4: Simplify right side
    21,580,517.80x = 351,137,560,972,285.69
  5. Step 5: Solve for x
    x = 351,137,560,972,285.69/21,580,517.80
  6. Step 6: Final answer
    x = 16,271,044.29

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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.