Home / 908,335,654.28-1,253,503,706.66-490,647,941.80

Finding the Fourth Proportional to 908,335,654.28, 1,253,503,706.66 and 490,647,941.80

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Solution

The fourth proportional to 908,335,654.28, 1,253,503,706.66 and 490,647,941.80 is: 677,094,431.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,335,654.28 : 1,253,503,706.66 = 490,647,941.80 : x
  2. Step 2: Convert to fraction form
    908,335,654.28/1,253,503,706.66 = 490,647,941.80/x
  3. Step 3: Cross multiply
    908,335,654.28x = 1,253,503,706.66 × 490,647,941.80
  4. Step 4: Simplify right side
    908,335,654.28x = 615,029,013,711,400,064
  5. Step 5: Solve for x
    x = 615,029,013,711,400,064/908,335,654.28
  6. Step 6: Final answer
    x = 677,094,431.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.