Home / 12,910,055.74-17,815,993.41-7,109,043.10

Finding the Fourth Proportional to 12,910,055.74, 17,815,993.41 and 7,109,043.10

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Solution

The fourth proportional to 12,910,055.74, 17,815,993.41 and 7,109,043.10 is: 9,810,543.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,910,055.74 : 17,815,993.41 = 7,109,043.10 : x
  2. Step 2: Convert to fraction form
    12,910,055.74/17,815,993.41 = 7,109,043.10/x
  3. Step 3: Cross multiply
    12,910,055.74x = 17,815,993.41 × 7,109,043.10
  4. Step 4: Simplify right side
    12,910,055.74x = 126,654,665,021,005.97
  5. Step 5: Solve for x
    x = 126,654,665,021,005.97/12,910,055.74
  6. Step 6: Final answer
    x = 9,810,543.62

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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.