Home / 20,372,713.94-28,114,877.12-11,205,597.26

Finding the Fourth Proportional to 20,372,713.94, 28,114,877.12 and 11,205,597.26

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Solution

The fourth proportional to 20,372,713.94, 28,114,877.12 and 11,205,597.26 is: 15,464,016.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,372,713.94 : 28,114,877.12 = 11,205,597.26 : x
  2. Step 2: Convert to fraction form
    20,372,713.94/28,114,877.12 = 11,205,597.26/x
  3. Step 3: Cross multiply
    20,372,713.94x = 28,114,877.12 × 11,205,597.26
  4. Step 4: Simplify right side
    20,372,713.94x = 315,043,990,021,108.69
  5. Step 5: Solve for x
    x = 315,043,990,021,108.69/20,372,713.94
  6. Step 6: Final answer
    x = 15,464,016.77

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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.