Home / 19,668,520.70-29,502,781.05-12,015,770.30

Finding the Fourth Proportional to 19,668,520.70, 29,502,781.05 and 12,015,770.30

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Solution

The fourth proportional to 19,668,520.70, 29,502,781.05 and 12,015,770.30 is: 18,023,655.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,668,520.70 : 29,502,781.05 = 12,015,770.30 : x
  2. Step 2: Convert to fraction form
    19,668,520.70/29,502,781.05 = 12,015,770.30/x
  3. Step 3: Cross multiply
    19,668,520.70x = 29,502,781.05 × 12,015,770.30
  4. Step 4: Simplify right side
    19,668,520.70x = 354,498,640,307,992.88
  5. Step 5: Solve for x
    x = 354,498,640,307,992.88/19,668,520.70
  6. Step 6: Final answer
    x = 18,023,655.45

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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.