Home / 908,530,107.37-1,253,771,584.94-490,842,391.30

Finding the Fourth Proportional to 908,530,107.37, 1,253,771,584.94 and 490,842,391.30

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Solution

The fourth proportional to 908,530,107.37, 1,253,771,584.94 and 490,842,391.30 is: 677,362,519.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,530,107.37 : 1,253,771,584.94 = 490,842,391.30 : x
  2. Step 2: Convert to fraction form
    908,530,107.37/1,253,771,584.94 = 490,842,391.30/x
  3. Step 3: Cross multiply
    908,530,107.37x = 1,253,771,584.94 × 490,842,391.30
  4. Step 4: Simplify right side
    908,530,107.37x = 615,404,242,894,033,408
  5. Step 5: Solve for x
    x = 615,404,242,894,033,408/908,530,107.37
  6. Step 6: Final answer
    x = 677,362,519.86

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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.