Home / 87,619,048.50-131,159,528.01-55,118,778.60

Finding the Fourth Proportional to 87,619,048.50, 131,159,528.01 and 55,118,778.60

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Solution

The fourth proportional to 87,619,048.50, 131,159,528.01 and 55,118,778.60 is: 82,508,919.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,619,048.50 : 131,159,528.01 = 55,118,778.60 : x
  2. Step 2: Convert to fraction form
    87,619,048.50/131,159,528.01 = 55,118,778.60/x
  3. Step 3: Cross multiply
    87,619,048.50x = 131,159,528.01 × 55,118,778.60
  4. Step 4: Simplify right side
    87,619,048.50x = 7,229,352,985,663,689
  5. Step 5: Solve for x
    x = 7,229,352,985,663,689/87,619,048.50
  6. Step 6: Final answer
    x = 82,508,919.12

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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.