Home / 20,876,626.80-31,322,813.40-10,103,464.80

Finding the Fourth Proportional to 20,876,626.80, 31,322,813.40 and 10,103,464.80

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Solution

The fourth proportional to 20,876,626.80, 31,322,813.40 and 10,103,464.80 is: 15,159,007.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,876,626.80 : 31,322,813.40 = 10,103,464.80 : x
  2. Step 2: Convert to fraction form
    20,876,626.80/31,322,813.40 = 10,103,464.80/x
  3. Step 3: Cross multiply
    20,876,626.80x = 31,322,813.40 × 10,103,464.80
  4. Step 4: Simplify right side
    20,876,626.80x = 316,468,942,623,868.31
  5. Step 5: Solve for x
    x = 316,468,942,623,868.31/20,876,626.80
  6. Step 6: Final answer
    x = 15,159,007.52

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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.