Home / 908,336,041.35-1,253,504,241.45-490,648,330.77

Finding the Fourth Proportional to 908,336,041.35, 1,253,504,241.45 and 490,648,330.77

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Solution

The fourth proportional to 908,336,041.35, 1,253,504,241.45 and 490,648,330.77 is: 677,094,968.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,336,041.35 : 1,253,504,241.45 = 490,648,330.77 : x
  2. Step 2: Convert to fraction form
    908,336,041.35/1,253,504,241.45 = 490,648,330.77/x
  3. Step 3: Cross multiply
    908,336,041.35x = 1,253,504,241.45 × 490,648,330.77
  4. Step 4: Simplify right side
    908,336,041.35x = 615,029,763,680,557,568
  5. Step 5: Solve for x
    x = 615,029,763,680,557,568/908,336,041.35
  6. Step 6: Final answer
    x = 677,094,968.91

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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.