Home / 21,079,520.88-29,089,574.39-11,787,108.92

Finding the Fourth Proportional to 21,079,520.88, 29,089,574.39 and 11,787,108.92

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Solution

The fourth proportional to 21,079,520.88, 29,089,574.39 and 11,787,108.92 is: 16,266,118.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,079,520.88 : 29,089,574.39 = 11,787,108.92 : x
  2. Step 2: Convert to fraction form
    21,079,520.88/29,089,574.39 = 11,787,108.92/x
  3. Step 3: Cross multiply
    21,079,520.88x = 29,089,574.39 × 11,787,108.92
  4. Step 4: Simplify right side
    21,079,520.88x = 342,881,981,655,392.44
  5. Step 5: Solve for x
    x = 342,881,981,655,392.44/21,079,520.88
  6. Step 6: Final answer
    x = 16,266,118.36

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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.