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Finding the Fourth Proportional to 17,643,609.60, 26,465,414.40 and 15,517,845.60

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Solution

The fourth proportional to 17,643,609.60, 26,465,414.40 and 15,517,845.60 is: 23,276,768.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,643,609.60 : 26,465,414.40 = 15,517,845.60 : x
  2. Step 2: Convert to fraction form
    17,643,609.60/26,465,414.40 = 15,517,845.60/x
  3. Step 3: Cross multiply
    17,643,609.60x = 26,465,414.40 × 15,517,845.60
  4. Step 4: Simplify right side
    17,643,609.60x = 410,686,214,399,216.62
  5. Step 5: Solve for x
    x = 410,686,214,399,216.62/17,643,609.60
  6. Step 6: Final answer
    x = 23,276,768.40

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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.