Home / 21,019,634.37-31,526,739.47-6,644,155.32

Finding the Fourth Proportional to 21,019,634.37, 31,526,739.47 and 6,644,155.32

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Solution

The fourth proportional to 21,019,634.37, 31,526,739.47 and 6,644,155.32 is: 9,965,375.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019,634.37 : 31,526,739.47 = 6,644,155.32 : x
  2. Step 2: Convert to fraction form
    21,019,634.37/31,526,739.47 = 6,644,155.32/x
  3. Step 3: Cross multiply
    21,019,634.37x = 31,526,739.47 × 6,644,155.32
  4. Step 4: Simplify right side
    21,019,634.37x = 209,468,553,788,464.88
  5. Step 5: Solve for x
    x = 209,468,553,788,464.88/21,019,634.37
  6. Step 6: Final answer
    x = 9,965,375.71

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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.