Home / 12,694,312.32-19,028,179.90-5,312,589.44

Finding the Fourth Proportional to 12,694,312.32, 19,028,179.90 and 5,312,589.44

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Solution

The fourth proportional to 12,694,312.32, 19,028,179.90 and 5,312,589.44 is: 7,963,322.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,694,312.32 : 19,028,179.90 = 5,312,589.44 : x
  2. Step 2: Convert to fraction form
    12,694,312.32/19,028,179.90 = 5,312,589.44/x
  3. Step 3: Cross multiply
    12,694,312.32x = 19,028,179.90 × 5,312,589.44
  4. Step 4: Simplify right side
    12,694,312.32x = 101,088,907,599,160.25
  5. Step 5: Solve for x
    x = 101,088,907,599,160.25/12,694,312.32
  6. Step 6: Final answer
    x = 7,963,322.87

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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.