Home / 13,412,675.18-18,508,436.44-7,611,456.90

Finding the Fourth Proportional to 13,412,675.18, 18,508,436.44 and 7,611,456.90

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Solution

The fourth proportional to 13,412,675.18, 18,508,436.44 and 7,611,456.90 is: 10,503,211.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412,675.18 : 18,508,436.44 = 7,611,456.90 : x
  2. Step 2: Convert to fraction form
    13,412,675.18/18,508,436.44 = 7,611,456.90/x
  3. Step 3: Cross multiply
    13,412,675.18x = 18,508,436.44 × 7,611,456.90
  4. Step 4: Simplify right side
    13,412,675.18x = 140,876,166,249,449.44
  5. Step 5: Solve for x
    x = 140,876,166,249,449.44/13,412,675.18
  6. Step 6: Final answer
    x = 10,503,211.65

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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.