Home / 12,172,687.28-16,798,103.16-6,740,062.64

Finding the Fourth Proportional to 12,172,687.28, 16,798,103.16 and 6,740,062.64

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Solution

The fourth proportional to 12,172,687.28, 16,798,103.16 and 6,740,062.64 is: 9,301,172.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,172,687.28 : 16,798,103.16 = 6,740,062.64 : x
  2. Step 2: Convert to fraction form
    12,172,687.28/16,798,103.16 = 6,740,062.64/x
  3. Step 3: Cross multiply
    12,172,687.28x = 16,798,103.16 × 6,740,062.64
  4. Step 4: Simplify right side
    12,172,687.28x = 113,220,267,531,581.94
  5. Step 5: Solve for x
    x = 113,220,267,531,581.94/12,172,687.28
  6. Step 6: Final answer
    x = 9,301,172.78

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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.