Home / 12,788,356.02-17,647,722.77-6,987,012.90

Finding the Fourth Proportional to 12,788,356.02, 17,647,722.77 and 6,987,012.90

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Solution

The fourth proportional to 12,788,356.02, 17,647,722.77 and 6,987,012.90 is: 9,641,963.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788,356.02 : 17,647,722.77 = 6,987,012.90 : x
  2. Step 2: Convert to fraction form
    12,788,356.02/17,647,722.77 = 6,987,012.90/x
  3. Step 3: Cross multiply
    12,788,356.02x = 17,647,722.77 × 6,987,012.90
  4. Step 4: Simplify right side
    12,788,356.02x = 123,304,866,614,678.67
  5. Step 5: Solve for x
    x = 123,304,866,614,678.67/12,788,356.02
  6. Step 6: Final answer
    x = 9,641,963.86

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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.