Home / 12,443,760.27-17,172,462.57-7,219,878.90

Finding the Fourth Proportional to 12,443,760.27, 17,172,462.57 and 7,219,878.90

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Solution

The fourth proportional to 12,443,760.27, 17,172,462.57 and 7,219,878.90 is: 9,963,475.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,443,760.27 : 17,172,462.57 = 7,219,878.90 : x
  2. Step 2: Convert to fraction form
    12,443,760.27/17,172,462.57 = 7,219,878.90/x
  3. Step 3: Cross multiply
    12,443,760.27x = 17,172,462.57 × 7,219,878.90
  4. Step 4: Simplify right side
    12,443,760.27x = 123,983,100,170,182.78
  5. Step 5: Solve for x
    x = 123,983,100,170,182.78/12,443,760.27
  6. Step 6: Final answer
    x = 9,963,475.47

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1.5x scale

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.