Home / 140,017,811.70-210,026,717.55-120,870,189.30

Finding the Fourth Proportional to 140,017,811.70, 210,026,717.55 and 120,870,189.30

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Solution

The fourth proportional to 140,017,811.70, 210,026,717.55 and 120,870,189.30 is: 181,305,283.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,017,811.70 : 210,026,717.55 = 120,870,189.30 : x
  2. Step 2: Convert to fraction form
    140,017,811.70/210,026,717.55 = 120,870,189.30/x
  3. Step 3: Cross multiply
    140,017,811.70x = 210,026,717.55 × 120,870,189.30
  4. Step 4: Simplify right side
    140,017,811.70x = 25,385,969,108,326,132
  5. Step 5: Solve for x
    x = 25,385,969,108,326,132/140,017,811.70
  6. Step 6: Final answer
    x = 181,305,283.95

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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.