Home / 20,848,871.99-31,287,436.64-8,555,057.89

Finding the Fourth Proportional to 20,848,871.99, 31,287,436.64 and 8,555,057.89

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Solution

The fourth proportional to 20,848,871.99, 31,287,436.64 and 8,555,057.89 is: 12,838,384.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,848,871.99 : 31,287,436.64 = 8,555,057.89 : x
  2. Step 2: Convert to fraction form
    20,848,871.99/31,287,436.64 = 8,555,057.89/x
  3. Step 3: Cross multiply
    20,848,871.99x = 31,287,436.64 × 8,555,057.89
  4. Step 4: Simplify right side
    20,848,871.99x = 267,665,831,729,044.44
  5. Step 5: Solve for x
    x = 267,665,831,729,044.44/20,848,871.99
  6. Step 6: Final answer
    x = 12,838,384.34

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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.