Home / 12,449,460.78-17,180,387.10-7,016,952.78

Finding the Fourth Proportional to 12,449,460.78, 17,180,387.10 and 7,016,952.78

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Solution

The fourth proportional to 12,449,460.78, 17,180,387.10 and 7,016,952.78 is: 9,683,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,449,460.78 : 17,180,387.10 = 7,016,952.78 : x
  2. Step 2: Convert to fraction form
    12,449,460.78/17,180,387.10 = 7,016,952.78/x
  3. Step 3: Cross multiply
    12,449,460.78x = 17,180,387.10 × 7,016,952.78
  4. Step 4: Simplify right side
    12,449,460.78x = 120,553,965,022,821.16
  5. Step 5: Solve for x
    x = 120,553,965,022,821.16/12,449,460.78
  6. Step 6: Final answer
    x = 9,683,468.80

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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.