Home / 12,468,654.60-18,702,981.90-8,213,627.40

Finding the Fourth Proportional to 12,468,654.60, 18,702,981.90 and 8,213,627.40

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Solution

The fourth proportional to 12,468,654.60, 18,702,981.90 and 8,213,627.40 is: 12,320,441.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,468,654.60 : 18,702,981.90 = 8,213,627.40 : x
  2. Step 2: Convert to fraction form
    12,468,654.60/18,702,981.90 = 8,213,627.40/x
  3. Step 3: Cross multiply
    12,468,654.60x = 18,702,981.90 × 8,213,627.40
  4. Step 4: Simplify right side
    12,468,654.60x = 153,619,324,595,544.06
  5. Step 5: Solve for x
    x = 153,619,324,595,544.06/12,468,654.60
  6. Step 6: Final answer
    x = 12,320,441.10

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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.