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Finding the Fourth Proportional to 18,456,481.60, 27,684,722.40 and 9,847,137.40

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Solution

The fourth proportional to 18,456,481.60, 27,684,722.40 and 9,847,137.40 is: 14,770,706.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,456,481.60 : 27,684,722.40 = 9,847,137.40 : x
  2. Step 2: Convert to fraction form
    18,456,481.60/27,684,722.40 = 9,847,137.40/x
  3. Step 3: Cross multiply
    18,456,481.60x = 27,684,722.40 × 9,847,137.40
  4. Step 4: Simplify right side
    18,456,481.60x = 272,615,265,353,657.75
  5. Step 5: Solve for x
    x = 272,615,265,353,657.75/18,456,481.60
  6. Step 6: Final answer
    x = 14,770,706.10

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1.5x scale

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.