Home / 12,778,113.31-17,633,662.68-6,976,877.11

Finding the Fourth Proportional to 12,778,113.31, 17,633,662.68 and 6,976,877.11

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Solution

The fourth proportional to 12,778,113.31, 17,633,662.68 and 6,976,877.11 is: 9,628,017.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,778,113.31 : 17,633,662.68 = 6,976,877.11 : x
  2. Step 2: Convert to fraction form
    12,778,113.31/17,633,662.68 = 6,976,877.11/x
  3. Step 3: Cross multiply
    12,778,113.31x = 17,633,662.68 × 6,976,877.11
  4. Step 4: Simplify right side
    12,778,113.31x = 123,027,897,517,553.27
  5. Step 5: Solve for x
    x = 123,027,897,517,553.27/12,778,113.31
  6. Step 6: Final answer
    x = 9,628,017.42

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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.