Home / 305,910,879.54-422,157,074.31-166,681,641.39

Finding the Fourth Proportional to 305,910,879.54, 422,157,074.31 and 166,681,641.39

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Solution

The fourth proportional to 305,910,879.54, 422,157,074.31 and 166,681,641.39 is: 230,020,698.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,910,879.54 : 422,157,074.31 = 166,681,641.39 : x
  2. Step 2: Convert to fraction form
    305,910,879.54/422,157,074.31 = 166,681,641.39/x
  3. Step 3: Cross multiply
    305,910,879.54x = 422,157,074.31 × 166,681,641.39
  4. Step 4: Simplify right side
    305,910,879.54x = 70,365,834,070,391,000
  5. Step 5: Solve for x
    x = 70,365,834,070,391,000/305,910,879.54
  6. Step 6: Final answer
    x = 230,020,698.11

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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.