Home / 1,286,280,014.40-1,929,420,021.60-796,503,988.80

Finding the Fourth Proportional to 1,286,280,014.40, 1,929,420,021.60 and 796,503,988.80

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Solution

The fourth proportional to 1,286,280,014.40, 1,929,420,021.60 and 796,503,988.80 is: 1,194,755,983.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,280,014.40 : 1,929,420,021.60 = 796,503,988.80 : x
  2. Step 2: Convert to fraction form
    1,286,280,014.40/1,929,420,021.60 = 796,503,988.80/x
  3. Step 3: Cross multiply
    1,286,280,014.40x = 1,929,420,021.60 × 796,503,988.80
  4. Step 4: Simplify right side
    1,286,280,014.40x = 1,536,790,743,274,981,888
  5. Step 5: Solve for x
    x = 1,536,790,743,274,981,888/1,286,280,014.40
  6. Step 6: Final answer
    x = 1,194,755,983.20

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Double scale
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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.