Home / 21,879,265.15-30,195,107.79-12,460,453.66

Finding the Fourth Proportional to 21,879,265.15, 30,195,107.79 and 12,460,453.66

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Solution

The fourth proportional to 21,879,265.15, 30,195,107.79 and 12,460,453.66 is: 17,196,406.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,879,265.15 : 30,195,107.79 = 12,460,453.66 : x
  2. Step 2: Convert to fraction form
    21,879,265.15/30,195,107.79 = 12,460,453.66/x
  3. Step 3: Cross multiply
    21,879,265.15x = 30,195,107.79 × 12,460,453.66
  4. Step 4: Simplify right side
    21,879,265.15x = 376,244,741,376,000
  5. Step 5: Solve for x
    x = 376,244,741,376,000/21,879,265.15
  6. Step 6: Final answer
    x = 17,196,406.68

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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.