Home / 13,390,508.85-18,479,104.69-7,511,446.25

Finding the Fourth Proportional to 13,390,508.85, 18,479,104.69 and 7,511,446.25

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Solution

The fourth proportional to 13,390,508.85, 18,479,104.69 and 7,511,446.25 is: 10,365,909.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390,508.85 : 18,479,104.69 = 7,511,446.25 : x
  2. Step 2: Convert to fraction form
    13,390,508.85/18,479,104.69 = 7,511,446.25/x
  3. Step 3: Cross multiply
    13,390,508.85x = 18,479,104.69 × 7,511,446.25
  4. Step 4: Simplify right side
    13,390,508.85x = 138,804,801,689,125.38
  5. Step 5: Solve for x
    x = 138,804,801,689,125.38/13,390,508.85
  6. Step 6: Final answer
    x = 10,365,909.41

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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.