Home / 12,990,846.80-19,486,270.20-12,294,117.20

Finding the Fourth Proportional to 12,990,846.80, 19,486,270.20 and 12,294,117.20

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Solution

The fourth proportional to 12,990,846.80, 19,486,270.20 and 12,294,117.20 is: 18,441,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,990,846.80 : 19,486,270.20 = 12,294,117.20 : x
  2. Step 2: Convert to fraction form
    12,990,846.80/19,486,270.20 = 12,294,117.20/x
  3. Step 3: Cross multiply
    12,990,846.80x = 19,486,270.20 × 12,294,117.20
  4. Step 4: Simplify right side
    12,990,846.80x = 239,566,489,629,667.41
  5. Step 5: Solve for x
    x = 239,566,489,629,667.41/12,990,846.80
  6. Step 6: Final answer
    x = 18,441,175.80

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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.