Home / 663,485,116.60-995,227,674.90-422,217,609.40

Finding the Fourth Proportional to 663,485,116.60, 995,227,674.90 and 422,217,609.40

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Solution

The fourth proportional to 663,485,116.60, 995,227,674.90 and 422,217,609.40 is: 633,326,414.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,485,116.60 : 995,227,674.90 = 422,217,609.40 : x
  2. Step 2: Convert to fraction form
    663,485,116.60/995,227,674.90 = 422,217,609.40/x
  3. Step 3: Cross multiply
    663,485,116.60x = 995,227,674.90 × 422,217,609.40
  4. Step 4: Simplify right side
    663,485,116.60x = 420,202,649,704,998,336
  5. Step 5: Solve for x
    x = 420,202,649,704,998,336/663,485,116.60
  6. Step 6: Final answer
    x = 633,326,414.10

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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.