Home / 13,302,421.20-19,930,012.20-12,452,115.60

Finding the Fourth Proportional to 13,302,421.20, 19,930,012.20 and 12,452,115.60

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Solution

The fourth proportional to 13,302,421.20, 19,930,012.20 and 12,452,115.60 is: 18,656,063.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,302,421.20 : 19,930,012.20 = 12,452,115.60 : x
  2. Step 2: Convert to fraction form
    13,302,421.20/19,930,012.20 = 12,452,115.60/x
  3. Step 3: Cross multiply
    13,302,421.20x = 19,930,012.20 × 12,452,115.60
  4. Step 4: Simplify right side
    13,302,421.20x = 248,170,815,823,810.31
  5. Step 5: Solve for x
    x = 248,170,815,823,810.31/13,302,421.20
  6. Step 6: Final answer
    x = 18,656,063.59

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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.