Home / 690,222,385.41-952,530,394.52-408,206,575.74

Finding the Fourth Proportional to 690,222,385.41, 952,530,394.52 and 408,206,575.74

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Solution

The fourth proportional to 690,222,385.41, 952,530,394.52 and 408,206,575.74 is: 563,338,974.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,222,385.41 : 952,530,394.52 = 408,206,575.74 : x
  2. Step 2: Convert to fraction form
    690,222,385.41/952,530,394.52 = 408,206,575.74/x
  3. Step 3: Cross multiply
    690,222,385.41x = 952,530,394.52 × 408,206,575.74
  4. Step 4: Simplify right side
    690,222,385.41x = 388,829,170,633,239,424
  5. Step 5: Solve for x
    x = 388,829,170,633,239,424/690,222,385.41
  6. Step 6: Final answer
    x = 563,338,974.30

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Double scale
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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.