Home / 20,876,620.80-31,322,804.40-10,103,458.80

Finding the Fourth Proportional to 20,876,620.80, 31,322,804.40 and 10,103,458.80

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Solution

The fourth proportional to 20,876,620.80, 31,322,804.40 and 10,103,458.80 is: 15,158,998.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,876,620.80 : 31,322,804.40 = 10,103,458.80 : x
  2. Step 2: Convert to fraction form
    20,876,620.80/31,322,804.40 = 10,103,458.80/x
  3. Step 3: Cross multiply
    20,876,620.80x = 31,322,804.40 × 10,103,458.80
  4. Step 4: Simplify right side
    20,876,620.80x = 316,468,663,755,858.75
  5. Step 5: Solve for x
    x = 316,468,663,755,858.75/20,876,620.80
  6. Step 6: Final answer
    x = 15,158,998.52

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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.