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Finding the Fourth Proportional to 13,441,662.60, 20,162,493.90 and 12,055,979.40

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Solution

The fourth proportional to 13,441,662.60, 20,162,493.90 and 12,055,979.40 is: 18,083,969.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441,662.60 : 20,162,493.90 = 12,055,979.40 : x
  2. Step 2: Convert to fraction form
    13,441,662.60/20,162,493.90 = 12,055,979.40/x
  3. Step 3: Cross multiply
    13,441,662.60x = 20,162,493.90 × 12,055,979.40
  4. Step 4: Simplify right side
    13,441,662.60x = 243,078,611,111,025.66
  5. Step 5: Solve for x
    x = 243,078,611,111,025.66/13,441,662.60
  6. Step 6: Final answer
    x = 18,083,969.10

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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.