Home / 12,376,689.38-18,565,008.55-6,982,891.28

Finding the Fourth Proportional to 12,376,689.38, 18,565,008.55 and 6,982,891.28

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Solution

The fourth proportional to 12,376,689.38, 18,565,008.55 and 6,982,891.28 is: 10,474,322.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376,689.38 : 18,565,008.55 = 6,982,891.28 : x
  2. Step 2: Convert to fraction form
    12,376,689.38/18,565,008.55 = 6,982,891.28/x
  3. Step 3: Cross multiply
    12,376,689.38x = 18,565,008.55 × 6,982,891.28
  4. Step 4: Simplify right side
    12,376,689.38x = 129,637,436,242,937.36
  5. Step 5: Solve for x
    x = 129,637,436,242,937.36/12,376,689.38
  6. Step 6: Final answer
    x = 10,474,322.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.