Home / 18,190,420.20-27,285,630.30-10,915,583.40

Finding the Fourth Proportional to 18,190,420.20, 27,285,630.30 and 10,915,583.40

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Solution

The fourth proportional to 18,190,420.20, 27,285,630.30 and 10,915,583.40 is: 16,373,375.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,190,420.20 : 27,285,630.30 = 10,915,583.40 : x
  2. Step 2: Convert to fraction form
    18,190,420.20/27,285,630.30 = 10,915,583.40/x
  3. Step 3: Cross multiply
    18,190,420.20x = 27,285,630.30 × 10,915,583.40
  4. Step 4: Simplify right side
    18,190,420.20x = 297,838,573,161,217.06
  5. Step 5: Solve for x
    x = 297,838,573,161,217.06/18,190,420.20
  6. Step 6: Final answer
    x = 16,373,375.10

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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.