Home / 12,348,604.20-18,511,847.10-8,090,812.20

Finding the Fourth Proportional to 12,348,604.20, 18,511,847.10 and 8,090,812.20

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Solution

The fourth proportional to 12,348,604.20, 18,511,847.10 and 8,090,812.20 is: 12,128,972.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,348,604.20 : 18,511,847.10 = 8,090,812.20 : x
  2. Step 2: Convert to fraction form
    12,348,604.20/18,511,847.10 = 8,090,812.20/x
  3. Step 3: Cross multiply
    12,348,604.20x = 18,511,847.10 × 8,090,812.20
  4. Step 4: Simplify right side
    12,348,604.20x = 149,775,878,361,214.62
  5. Step 5: Solve for x
    x = 149,775,878,361,214.62/12,348,604.20
  6. Step 6: Final answer
    x = 12,128,972.31

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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.