Home / 12,492,771.40-17,239,906.34-6,986,083.09

Finding the Fourth Proportional to 12,492,771.40, 17,239,906.34 and 6,986,083.09

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Solution

The fourth proportional to 12,492,771.40, 17,239,906.34 and 6,986,083.09 is: 9,640,728.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,492,771.40 : 17,239,906.34 = 6,986,083.09 : x
  2. Step 2: Convert to fraction form
    12,492,771.40/17,239,906.34 = 6,986,083.09/x
  3. Step 3: Cross multiply
    12,492,771.40x = 17,239,906.34 × 6,986,083.09
  4. Step 4: Simplify right side
    12,492,771.40x = 120,439,418,155,057.78
  5. Step 5: Solve for x
    x = 120,439,418,155,057.78/12,492,771.40
  6. Step 6: Final answer
    x = 9,640,728.57

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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.