Home / 140,017,815.70-210,026,723.55-120,870,193.30

Finding the Fourth Proportional to 140,017,815.70, 210,026,723.55 and 120,870,193.30

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Solution

The fourth proportional to 140,017,815.70, 210,026,723.55 and 120,870,193.30 is: 181,305,289.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,017,815.70 : 210,026,723.55 = 120,870,193.30 : x
  2. Step 2: Convert to fraction form
    140,017,815.70/210,026,723.55 = 120,870,193.30/x
  3. Step 3: Cross multiply
    140,017,815.70x = 210,026,723.55 × 120,870,193.30
  4. Step 4: Simplify right side
    140,017,815.70x = 25,385,970,673,654,164
  5. Step 5: Solve for x
    x = 25,385,970,673,654,164/140,017,815.70
  6. Step 6: Final answer
    x = 181,305,289.95

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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.