Home / 12,413,378.91-18,620,172.06-4,326,341.43

Finding the Fourth Proportional to 12,413,378.91, 18,620,172.06 and 4,326,341.43

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Solution

The fourth proportional to 12,413,378.91, 18,620,172.06 and 4,326,341.43 is: 6,489,548.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,413,378.91 : 18,620,172.06 = 4,326,341.43 : x
  2. Step 2: Convert to fraction form
    12,413,378.91/18,620,172.06 = 4,326,341.43/x
  3. Step 3: Cross multiply
    12,413,378.91x = 18,620,172.06 × 4,326,341.43
  4. Step 4: Simplify right side
    12,413,378.91x = 80,557,221,816,906.44
  5. Step 5: Solve for x
    x = 80,557,221,816,906.44/12,413,378.91
  6. Step 6: Final answer
    x = 6,489,548.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.