Home / 12,788,974.65-17,648,909.01-6,987,755.88

Finding the Fourth Proportional to 12,788,974.65, 17,648,909.01 and 6,987,755.88

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Solution

The fourth proportional to 12,788,974.65, 17,648,909.01 and 6,987,755.88 is: 9,643,170.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788,974.65 : 17,648,909.01 = 6,987,755.88 : x
  2. Step 2: Convert to fraction form
    12,788,974.65/17,648,909.01 = 6,987,755.88/x
  3. Step 3: Cross multiply
    12,788,974.65x = 17,648,909.01 × 6,987,755.88
  4. Step 4: Simplify right side
    12,788,974.65x = 123,326,267,710,212.48
  5. Step 5: Solve for x
    x = 123,326,267,710,212.48/12,788,974.65
  6. Step 6: Final answer
    x = 9,643,170.86

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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.