Home / 12,818,939.11-17,690,136.57-7,017,720.85

Finding the Fourth Proportional to 12,818,939.11, 17,690,136.57 and 7,017,720.85

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Solution

The fourth proportional to 12,818,939.11, 17,690,136.57 and 7,017,720.85 is: 9,684,455.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,818,939.11 : 17,690,136.57 = 7,017,720.85 : x
  2. Step 2: Convert to fraction form
    12,818,939.11/17,690,136.57 = 7,017,720.85/x
  3. Step 3: Cross multiply
    12,818,939.11x = 17,690,136.57 × 7,017,720.85
  4. Step 4: Simplify right side
    12,818,939.11x = 124,144,440,204,098.03
  5. Step 5: Solve for x
    x = 124,144,440,204,098.03/12,818,939.11
  6. Step 6: Final answer
    x = 9,684,455.10

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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.