Home / 140,031,138.80-209,952,229.80-67,282,770.80

Finding the Fourth Proportional to 140,031,138.80, 209,952,229.80 and 67,282,770.80

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Solution

The fourth proportional to 140,031,138.80, 209,952,229.80 and 67,282,770.80 is: 100,878,760.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,031,138.80 : 209,952,229.80 = 67,282,770.80 : x
  2. Step 2: Convert to fraction form
    140,031,138.80/209,952,229.80 = 67,282,770.80/x
  3. Step 3: Cross multiply
    140,031,138.80x = 209,952,229.80 × 67,282,770.80
  4. Step 4: Simplify right side
    140,031,138.80x = 14,126,167,756,582,330
  5. Step 5: Solve for x
    x = 14,126,167,756,582,330/140,031,138.80
  6. Step 6: Final answer
    x = 100,878,760.81

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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.