Home / 21,141,558.54-31,707,375.75-11,923,516.35

Finding the Fourth Proportional to 21,141,558.54, 31,707,375.75 and 11,923,516.35

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Solution

The fourth proportional to 21,141,558.54, 31,707,375.75 and 11,923,516.35 is: 17,882,476.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,141,558.54 : 31,707,375.75 = 11,923,516.35 : x
  2. Step 2: Convert to fraction form
    21,141,558.54/31,707,375.75 = 11,923,516.35/x
  3. Step 3: Cross multiply
    21,141,558.54x = 31,707,375.75 × 11,923,516.35
  4. Step 4: Simplify right side
    21,141,558.54x = 378,063,413,170,718.50
  5. Step 5: Solve for x
    x = 378,063,413,170,718.50/21,141,558.54
  6. Step 6: Final answer
    x = 17,882,476.00

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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.