Home / 15,617,778.72-21,552,309-8,647,787.04

Finding the Fourth Proportional to 15,617,778.72, 21,552,309 and 8,647,787.04

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Solution

The fourth proportional to 15,617,778.72, 21,552,309 and 8,647,787.04 is: 11,933,821.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,617,778.72 : 21,552,309 = 8,647,787.04 : x
  2. Step 2: Convert to fraction form
    15,617,778.72/21,552,309 = 8,647,787.04/x
  3. Step 3: Cross multiply
    15,617,778.72x = 21,552,309 × 8,647,787.04
  4. Step 4: Simplify right side
    15,617,778.72x = 186,379,778,452,275.34
  5. Step 5: Solve for x
    x = 186,379,778,452,275.34/15,617,778.72
  6. Step 6: Final answer
    x = 11,933,821.18

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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.