Home / 15,617,781.72-21,552,313.14-8,647,790.04

Finding the Fourth Proportional to 15,617,781.72, 21,552,313.14 and 8,647,790.04

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Solution

The fourth proportional to 15,617,781.72, 21,552,313.14 and 8,647,790.04 is: 11,933,825.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,617,781.72 : 21,552,313.14 = 8,647,790.04 : x
  2. Step 2: Convert to fraction form
    15,617,781.72/21,552,313.14 = 8,647,790.04/x
  3. Step 3: Cross multiply
    15,617,781.72x = 21,552,313.14 × 8,647,790.04
  4. Step 4: Simplify right side
    15,617,781.72x = 186,379,878,911,053.12
  5. Step 5: Solve for x
    x = 186,379,878,911,053.12/15,617,781.72
  6. Step 6: Final answer
    x = 11,933,825.32

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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.