Home / 995,328,806.40-1,492,993,209.60-721,414,540.80

Finding the Fourth Proportional to 995,328,806.40, 1,492,993,209.60 and 721,414,540.80

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Solution

The fourth proportional to 995,328,806.40, 1,492,993,209.60 and 721,414,540.80 is: 1,082,121,811.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,328,806.40 : 1,492,993,209.60 = 721,414,540.80 : x
  2. Step 2: Convert to fraction form
    995,328,806.40/1,492,993,209.60 = 721,414,540.80/x
  3. Step 3: Cross multiply
    995,328,806.40x = 1,492,993,209.60 × 721,414,540.80
  4. Step 4: Simplify right side
    995,328,806.40x = 1,077,067,010,721,101,952
  5. Step 5: Solve for x
    x = 1,077,067,010,721,101,952/995,328,806.40
  6. Step 6: Final answer
    x = 1,082,121,811.20

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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.