Home / 13,969,961.40-20,912,951.70-8,287,260.60

Finding the Fourth Proportional to 13,969,961.40, 20,912,951.70 and 8,287,260.60

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Solution

The fourth proportional to 13,969,961.40, 20,912,951.70 and 8,287,260.60 is: 12,405,981.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,969,961.40 : 20,912,951.70 = 8,287,260.60 : x
  2. Step 2: Convert to fraction form
    13,969,961.40/20,912,951.70 = 8,287,260.60/x
  3. Step 3: Cross multiply
    13,969,961.40x = 20,912,951.70 × 8,287,260.60
  4. Step 4: Simplify right side
    13,969,961.40x = 173,311,080,653,113
  5. Step 5: Solve for x
    x = 173,311,080,653,113/13,969,961.40
  6. Step 6: Final answer
    x = 12,405,981.35

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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.