Home / 489,520,021.80-734,067,456.30-161,868,930.60

Finding the Fourth Proportional to 489,520,021.80, 734,067,456.30 and 161,868,930.60

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Solution

The fourth proportional to 489,520,021.80, 734,067,456.30 and 161,868,930.60 is: 242,733,103.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,520,021.80 : 734,067,456.30 = 161,868,930.60 : x
  2. Step 2: Convert to fraction form
    489,520,021.80/734,067,456.30 = 161,868,930.60/x
  3. Step 3: Cross multiply
    489,520,021.80x = 734,067,456.30 × 161,868,930.60
  4. Step 4: Simplify right side
    489,520,021.80x = 118,822,714,139,543,216
  5. Step 5: Solve for x
    x = 118,822,714,139,543,216/489,520,021.80
  6. Step 6: Final answer
    x = 242,733,103.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.