Home / 12,783,977.28-17,641,868.64-6,982,758.96

Finding the Fourth Proportional to 12,783,977.28, 17,641,868.64 and 6,982,758.96

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Solution

The fourth proportional to 12,783,977.28, 17,641,868.64 and 6,982,758.96 is: 9,636,196.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,783,977.28 : 17,641,868.64 = 6,982,758.96 : x
  2. Step 2: Convert to fraction form
    12,783,977.28/17,641,868.64 = 6,982,758.96/x
  3. Step 3: Cross multiply
    12,783,977.28x = 17,641,868.64 × 6,982,758.96
  4. Step 4: Simplify right side
    12,783,977.28x = 123,188,916,317,103.02
  5. Step 5: Solve for x
    x = 123,188,916,317,103.02/12,783,977.28
  6. Step 6: Final answer
    x = 9,636,196.44

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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.