Home / 20,391,940.21-28,141,475.53-11,100,116.33

Finding the Fourth Proportional to 20,391,940.21, 28,141,475.53 and 11,100,116.33

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Solution

The fourth proportional to 20,391,940.21, 28,141,475.53 and 11,100,116.33 is: 15,318,486.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,391,940.21 : 28,141,475.53 = 11,100,116.33 : x
  2. Step 2: Convert to fraction form
    20,391,940.21/28,141,475.53 = 11,100,116.33/x
  3. Step 3: Cross multiply
    20,391,940.21x = 28,141,475.53 × 11,100,116.33
  4. Step 4: Simplify right side
    20,391,940.21x = 312,373,652,080,848.44
  5. Step 5: Solve for x
    x = 312,373,652,080,848.44/20,391,940.21
  6. Step 6: Final answer
    x = 15,318,486.08

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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.