Home / 12,729,331.89-17,566,863.80-6,928,533.09

Finding the Fourth Proportional to 12,729,331.89, 17,566,863.80 and 6,928,533.09

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Solution

The fourth proportional to 12,729,331.89, 17,566,863.80 and 6,928,533.09 is: 9,561,585.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,729,331.89 : 17,566,863.80 = 6,928,533.09 : x
  2. Step 2: Convert to fraction form
    12,729,331.89/17,566,863.80 = 6,928,533.09/x
  3. Step 3: Cross multiply
    12,729,331.89x = 17,566,863.80 × 6,928,533.09
  4. Step 4: Simplify right side
    12,729,331.89x = 121,712,597,091,180.48
  5. Step 5: Solve for x
    x = 121,712,597,091,180.48/12,729,331.89
  6. Step 6: Final answer
    x = 9,561,585.65

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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.