Home / 12,878,049.55-17,767,832.88-7,719,528.91

Finding the Fourth Proportional to 12,878,049.55, 17,767,832.88 and 7,719,528.91

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Solution

The fourth proportional to 12,878,049.55, 17,767,832.88 and 7,719,528.91 is: 10,650,626.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,878,049.55 : 17,767,832.88 = 7,719,528.91 : x
  2. Step 2: Convert to fraction form
    12,878,049.55/17,767,832.88 = 7,719,528.91/x
  3. Step 3: Cross multiply
    12,878,049.55x = 17,767,832.88 × 7,719,528.91
  4. Step 4: Simplify right side
    12,878,049.55x = 137,159,299,585,208.56
  5. Step 5: Solve for x
    x = 137,159,299,585,208.56/12,878,049.55
  6. Step 6: Final answer
    x = 10,650,626.79

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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.