Home / 129,031,690.20-193,348,469.70-111,912,048.60

Finding the Fourth Proportional to 129,031,690.20, 193,348,469.70 and 111,912,048.60

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Solution

The fourth proportional to 129,031,690.20, 193,348,469.70 and 111,912,048.60 is: 167,695,418.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,031,690.20 : 193,348,469.70 = 111,912,048.60 : x
  2. Step 2: Convert to fraction form
    129,031,690.20/193,348,469.70 = 111,912,048.60/x
  3. Step 3: Cross multiply
    129,031,690.20x = 193,348,469.70 × 111,912,048.60
  4. Step 4: Simplify right side
    129,031,690.20x = 21,638,023,337,802,024
  5. Step 5: Solve for x
    x = 21,638,023,337,802,024/129,031,690.20
  6. Step 6: Final answer
    x = 167,695,418.89

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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.