Home / 808,338,198.96-1,115,500,216.68-469,278,135.36

Finding the Fourth Proportional to 808,338,198.96, 1,115,500,216.68 and 469,278,135.36

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Solution

The fourth proportional to 808,338,198.96, 1,115,500,216.68 and 469,278,135.36 is: 647,600,054.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,338,198.96 : 1,115,500,216.68 = 469,278,135.36 : x
  2. Step 2: Convert to fraction form
    808,338,198.96/1,115,500,216.68 = 469,278,135.36/x
  3. Step 3: Cross multiply
    808,338,198.96x = 1,115,500,216.68 × 469,278,135.36
  4. Step 4: Simplify right side
    808,338,198.96x = 523,479,861,677,266,432
  5. Step 5: Solve for x
    x = 523,479,861,677,266,432/808,338,198.96
  6. Step 6: Final answer
    x = 647,600,054.47

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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.