Home / 908,530,108.11-1,253,771,585.97-490,842,392.04

Finding the Fourth Proportional to 908,530,108.11, 1,253,771,585.97 and 490,842,392.04

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Solution

The fourth proportional to 908,530,108.11, 1,253,771,585.97 and 490,842,392.04 is: 677,362,520.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,530,108.11 : 1,253,771,585.97 = 490,842,392.04 : x
  2. Step 2: Convert to fraction form
    908,530,108.11/1,253,771,585.97 = 490,842,392.04/x
  3. Step 3: Cross multiply
    908,530,108.11x = 1,253,771,585.97 × 490,842,392.04
  4. Step 4: Simplify right side
    908,530,108.11x = 615,404,244,329,299,328
  5. Step 5: Solve for x
    x = 615,404,244,329,299,328/908,530,108.11
  6. Step 6: Final answer
    x = 677,362,520.88

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1.5x scale

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.