Home / 663,473,217.60-995,209,826.40-422,205,710.40

Finding the Fourth Proportional to 663,473,217.60, 995,209,826.40 and 422,205,710.40

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Solution

The fourth proportional to 663,473,217.60, 995,209,826.40 and 422,205,710.40 is: 633,308,565.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,473,217.60 : 995,209,826.40 = 422,205,710.40 : x
  2. Step 2: Convert to fraction form
    663,473,217.60/995,209,826.40 = 422,205,710.40/x
  3. Step 3: Cross multiply
    663,473,217.60x = 995,209,826.40 × 422,205,710.40
  4. Step 4: Simplify right side
    663,473,217.60x = 420,183,271,752,272,640
  5. Step 5: Solve for x
    x = 420,183,271,752,272,640/663,473,217.60
  6. Step 6: Final answer
    x = 633,308,565.60

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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.