Home / 12,788,356.65-17,647,723.63-6,987,013.53

Finding the Fourth Proportional to 12,788,356.65, 17,647,723.63 and 6,987,013.53

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Solution

The fourth proportional to 12,788,356.65, 17,647,723.63 and 6,987,013.53 is: 9,641,964.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788,356.65 : 17,647,723.63 = 6,987,013.53 : x
  2. Step 2: Convert to fraction form
    12,788,356.65/17,647,723.63 = 6,987,013.53/x
  3. Step 3: Cross multiply
    12,788,356.65x = 17,647,723.63 × 6,987,013.53
  4. Step 4: Simplify right side
    12,788,356.65x = 123,304,883,653,337.03
  5. Step 5: Solve for x
    x = 123,304,883,653,337.03/12,788,356.65
  6. Step 6: Final answer
    x = 9,641,964.72

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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.