Home / 12,878,115.72-17,767,924.10-7,719,595.08

Finding the Fourth Proportional to 12,878,115.72, 17,767,924.10 and 7,719,595.08

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Solution

The fourth proportional to 12,878,115.72, 17,767,924.10 and 7,719,595.08 is: 10,650,718.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,878,115.72 : 17,767,924.10 = 7,719,595.08 : x
  2. Step 2: Convert to fraction form
    12,878,115.72/17,767,924.10 = 7,719,595.08/x
  3. Step 3: Cross multiply
    12,878,115.72x = 17,767,924.10 × 7,719,595.08
  4. Step 4: Simplify right side
    12,878,115.72x = 137,161,179,464,173.44
  5. Step 5: Solve for x
    x = 137,161,179,464,173.44/12,878,115.72
  6. Step 6: Final answer
    x = 10,650,718.04

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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.