Home / 20,848,877.84-31,287,445.42-8,555,063.72

Finding the Fourth Proportional to 20,848,877.84, 31,287,445.42 and 8,555,063.72

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Solution

The fourth proportional to 20,848,877.84, 31,287,445.42 and 8,555,063.72 is: 12,838,393.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,848,877.84 : 31,287,445.42 = 8,555,063.72 : x
  2. Step 2: Convert to fraction form
    20,848,877.84/31,287,445.42 = 8,555,063.72/x
  3. Step 3: Cross multiply
    20,848,877.84x = 31,287,445.42 × 8,555,063.72
  4. Step 4: Simplify right side
    20,848,877.84x = 267,666,089,204,122.19
  5. Step 5: Solve for x
    x = 267,666,089,204,122.19/20,848,877.84
  6. Step 6: Final answer
    x = 12,838,393.09

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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.