Home / 21,278,900.19-31,922,833.64-6,900,846.86

Finding the Fourth Proportional to 21,278,900.19, 31,922,833.64 and 6,900,846.86

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Solution

The fourth proportional to 21,278,900.19, 31,922,833.64 and 6,900,846.86 is: 10,352,724.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,278,900.19 : 31,922,833.64 = 6,900,846.86 : x
  2. Step 2: Convert to fraction form
    21,278,900.19/31,922,833.64 = 6,900,846.86/x
  3. Step 3: Cross multiply
    21,278,900.19x = 31,922,833.64 × 6,900,846.86
  4. Step 4: Simplify right side
    21,278,900.19x = 220,294,586,286,896.38
  5. Step 5: Solve for x
    x = 220,294,586,286,896.38/21,278,900.19
  6. Step 6: Final answer
    x = 10,352,724.26

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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.