Home / 65,616,029.20-98,424,043.80-20,171,918.80

Finding the Fourth Proportional to 65,616,029.20, 98,424,043.80 and 20,171,918.80

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Solution

The fourth proportional to 65,616,029.20, 98,424,043.80 and 20,171,918.80 is: 30,257,878.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,616,029.20 : 98,424,043.80 = 20,171,918.80 : x
  2. Step 2: Convert to fraction form
    65,616,029.20/98,424,043.80 = 20,171,918.80/x
  3. Step 3: Cross multiply
    65,616,029.20x = 98,424,043.80 × 20,171,918.80
  4. Step 4: Simplify right side
    65,616,029.20x = 1,985,401,819,501,243.50
  5. Step 5: Solve for x
    x = 1,985,401,819,501,243.50/65,616,029.20
  6. Step 6: Final answer
    x = 30,257,878.20

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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.