Home / 13,293,690.40-19,940,535.60-8,228,576.80

Finding the Fourth Proportional to 13,293,690.40, 19,940,535.60 and 8,228,576.80

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Solution

The fourth proportional to 13,293,690.40, 19,940,535.60 and 8,228,576.80 is: 12,342,865.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293,690.40 : 19,940,535.60 = 8,228,576.80 : x
  2. Step 2: Convert to fraction form
    13,293,690.40/19,940,535.60 = 8,228,576.80/x
  3. Step 3: Cross multiply
    13,293,690.40x = 19,940,535.60 × 8,228,576.80
  4. Step 4: Simplify right side
    13,293,690.40x = 164,082,228,617,734.09
  5. Step 5: Solve for x
    x = 164,082,228,617,734.09/13,293,690.40
  6. Step 6: Final answer
    x = 12,342,865.20

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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.