Home / 21,296,454.91-29,389,121.31-11,506,897.54

Finding the Fourth Proportional to 21,296,454.91, 29,389,121.31 and 11,506,897.54

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Solution

The fourth proportional to 21,296,454.91, 29,389,121.31 and 11,506,897.54 is: 15,879,525.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,296,454.91 : 29,389,121.31 = 11,506,897.54 : x
  2. Step 2: Convert to fraction form
    21,296,454.91/29,389,121.31 = 11,506,897.54/x
  3. Step 3: Cross multiply
    21,296,454.91x = 29,389,121.31 × 11,506,897.54
  4. Step 4: Simplify right side
    21,296,454.91x = 338,177,607,704,800.56
  5. Step 5: Solve for x
    x = 338,177,607,704,800.56/21,296,454.91
  6. Step 6: Final answer
    x = 15,879,525.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.