Home / 908,344,297.87-1,253,515,680.21-490,656,767.70

Finding the Fourth Proportional to 908,344,297.87, 1,253,515,680.21 and 490,656,767.70

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Solution

The fourth proportional to 908,344,297.87, 1,253,515,680.21 and 490,656,767.70 is: 677,106,636.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,344,297.87 : 1,253,515,680.21 = 490,656,767.70 : x
  2. Step 2: Convert to fraction form
    908,344,297.87/1,253,515,680.21 = 490,656,767.70/x
  3. Step 3: Cross multiply
    908,344,297.87x = 1,253,515,680.21 × 490,656,767.70
  4. Step 4: Simplify right side
    908,344,297.87x = 615,045,951,906,837,888
  5. Step 5: Solve for x
    x = 615,045,951,906,837,888/908,344,297.87
  6. Step 6: Final answer
    x = 677,106,636.05

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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.