Home / 12,983,857.70-19,475,786.55-5,409,839.30

Finding the Fourth Proportional to 12,983,857.70, 19,475,786.55 and 5,409,839.30

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Solution

The fourth proportional to 12,983,857.70, 19,475,786.55 and 5,409,839.30 is: 8,114,758.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,983,857.70 : 19,475,786.55 = 5,409,839.30 : x
  2. Step 2: Convert to fraction form
    12,983,857.70/19,475,786.55 = 5,409,839.30/x
  3. Step 3: Cross multiply
    12,983,857.70x = 19,475,786.55 × 5,409,839.30
  4. Step 4: Simplify right side
    12,983,857.70x = 105,360,875,476,601.42
  5. Step 5: Solve for x
    x = 105,360,875,476,601.42/12,983,857.70
  6. Step 6: Final answer
    x = 8,114,758.95

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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.