Home / 663,473,218.60-995,209,827.90-422,205,711.40

Finding the Fourth Proportional to 663,473,218.60, 995,209,827.90 and 422,205,711.40

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Solution

The fourth proportional to 663,473,218.60, 995,209,827.90 and 422,205,711.40 is: 633,308,567.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,473,218.60 : 995,209,827.90 = 422,205,711.40 : x
  2. Step 2: Convert to fraction form
    663,473,218.60/995,209,827.90 = 422,205,711.40/x
  3. Step 3: Cross multiply
    663,473,218.60x = 995,209,827.90 × 422,205,711.40
  4. Step 4: Simplify right side
    663,473,218.60x = 420,183,273,380,791,040
  5. Step 5: Solve for x
    x = 420,183,273,380,791,040/663,473,218.60
  6. Step 6: Final answer
    x = 633,308,567.10

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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.