Home / 65,616,028.20-98,424,042.30-20,171,917.80

Finding the Fourth Proportional to 65,616,028.20, 98,424,042.30 and 20,171,917.80

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Solution

The fourth proportional to 65,616,028.20, 98,424,042.30 and 20,171,917.80 is: 30,257,876.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,616,028.20 : 98,424,042.30 = 20,171,917.80 : x
  2. Step 2: Convert to fraction form
    65,616,028.20/98,424,042.30 = 20,171,917.80/x
  3. Step 3: Cross multiply
    65,616,028.20x = 98,424,042.30 × 20,171,917.80
  4. Step 4: Simplify right side
    65,616,028.20x = 1,985,401,690,819,323
  5. Step 5: Solve for x
    x = 1,985,401,690,819,323/65,616,028.20
  6. Step 6: Final answer
    x = 30,257,876.70

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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.