Home / 20,885,641.66-31,328,336.13-11,361,548.26

Finding the Fourth Proportional to 20,885,641.66, 31,328,336.13 and 11,361,548.26

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Solution

The fourth proportional to 20,885,641.66, 31,328,336.13 and 11,361,548.26 is: 17,042,253.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,885,641.66 : 31,328,336.13 = 11,361,548.26 : x
  2. Step 2: Convert to fraction form
    20,885,641.66/31,328,336.13 = 11,361,548.26/x
  3. Step 3: Cross multiply
    20,885,641.66x = 31,328,336.13 × 11,361,548.26
  4. Step 4: Simplify right side
    20,885,641.66x = 355,938,402,846,496.62
  5. Step 5: Solve for x
    x = 355,938,402,846,496.62/20,885,641.66
  6. Step 6: Final answer
    x = 17,042,253.65

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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.