Home / 71,568,004.20-107,352,006.30-66,749,605.80

Finding the Fourth Proportional to 71,568,004.20, 107,352,006.30 and 66,749,605.80

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Solution

The fourth proportional to 71,568,004.20, 107,352,006.30 and 66,749,605.80 is: 100,124,408.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,568,004.20 : 107,352,006.30 = 66,749,605.80 : x
  2. Step 2: Convert to fraction form
    71,568,004.20/107,352,006.30 = 66,749,605.80/x
  3. Step 3: Cross multiply
    71,568,004.20x = 107,352,006.30 × 66,749,605.80
  4. Step 4: Simplify right side
    71,568,004.20x = 7,165,704,102,364,116
  5. Step 5: Solve for x
    x = 7,165,704,102,364,116/71,568,004.20
  6. Step 6: Final answer
    x = 100,124,408.70

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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.