Home / 22,143,916.32-30,557,911.68-12,982,660.80

Finding the Fourth Proportional to 22,143,916.32, 30,557,911.68 and 12,982,660.80

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Solution

The fourth proportional to 22,143,916.32, 30,557,911.68 and 12,982,660.80 is: 17,915,665.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,143,916.32 : 30,557,911.68 = 12,982,660.80 : x
  2. Step 2: Convert to fraction form
    22,143,916.32/30,557,911.68 = 12,982,660.80/x
  3. Step 3: Cross multiply
    22,143,916.32x = 30,557,911.68 × 12,982,660.80
  4. Step 4: Simplify right side
    22,143,916.32x = 396,723,002,097,798.19
  5. Step 5: Solve for x
    x = 396,723,002,097,798.19/22,143,916.32
  6. Step 6: Final answer
    x = 17,915,665.70

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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.