Home / 18,699,136.40-28,040,410.20-8,596,557.20

Finding the Fourth Proportional to 18,699,136.40, 28,040,410.20 and 8,596,557.20

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Solution

The fourth proportional to 18,699,136.40, 28,040,410.20 and 8,596,557.20 is: 12,891,022.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,699,136.40 : 28,040,410.20 = 8,596,557.20 : x
  2. Step 2: Convert to fraction form
    18,699,136.40/28,040,410.20 = 8,596,557.20/x
  3. Step 3: Cross multiply
    18,699,136.40x = 28,040,410.20 × 8,596,557.20
  4. Step 4: Simplify right side
    18,699,136.40x = 241,050,990,195,763.41
  5. Step 5: Solve for x
    x = 241,050,990,195,763.41/18,699,136.40
  6. Step 6: Final answer
    x = 12,891,022.61

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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.