Home / 13,489,940.90-20,227,912.95-4,965,889.70

Finding the Fourth Proportional to 13,489,940.90, 20,227,912.95 and 4,965,889.70

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Solution

The fourth proportional to 13,489,940.90, 20,227,912.95 and 4,965,889.70 is: 7,446,258.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489,940.90 : 20,227,912.95 = 4,965,889.70 : x
  2. Step 2: Convert to fraction form
    13,489,940.90/20,227,912.95 = 4,965,889.70/x
  3. Step 3: Cross multiply
    13,489,940.90x = 20,227,912.95 × 4,965,889.70
  4. Step 4: Simplify right side
    13,489,940.90x = 100,449,584,570,901.61
  5. Step 5: Solve for x
    x = 100,449,584,570,901.61/13,489,940.90
  6. Step 6: Final answer
    x = 7,446,258.31

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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.