Home / 12,789,028.10-19,183,542.15-8,757,949.70

Finding the Fourth Proportional to 12,789,028.10, 19,183,542.15 and 8,757,949.70

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Solution

The fourth proportional to 12,789,028.10, 19,183,542.15 and 8,757,949.70 is: 13,136,924.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,789,028.10 : 19,183,542.15 = 8,757,949.70 : x
  2. Step 2: Convert to fraction form
    12,789,028.10/19,183,542.15 = 8,757,949.70/x
  3. Step 3: Cross multiply
    12,789,028.10x = 19,183,542.15 × 8,757,949.70
  4. Step 4: Simplify right side
    12,789,028.10x = 168,008,497,217,529.81
  5. Step 5: Solve for x
    x = 168,008,497,217,529.81/12,789,028.10
  6. Step 6: Final answer
    x = 13,136,924.55

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1.5x scale

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.