Home / 72,508,950.32-100,063,626.90-39,470,149.09

Finding the Fourth Proportional to 72,508,950.32, 100,063,626.90 and 39,470,149.09

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Solution

The fourth proportional to 72,508,950.32, 100,063,626.90 and 39,470,149.09 is: 54,469,500.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,508,950.32 : 100,063,626.90 = 39,470,149.09 : x
  2. Step 2: Convert to fraction form
    72,508,950.32/100,063,626.90 = 39,470,149.09/x
  3. Step 3: Cross multiply
    72,508,950.32x = 100,063,626.90 × 39,470,149.09
  4. Step 4: Simplify right side
    72,508,950.32x = 3,949,526,271,728,816.50
  5. Step 5: Solve for x
    x = 3,949,526,271,728,816.50/72,508,950.32
  6. Step 6: Final answer
    x = 54,469,500.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.