Home / 140,923,472.80-211,385,209.20-80,457,296.80

Finding the Fourth Proportional to 140,923,472.80, 211,385,209.20 and 80,457,296.80

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Solution

The fourth proportional to 140,923,472.80, 211,385,209.20 and 80,457,296.80 is: 120,685,945.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,923,472.80 : 211,385,209.20 = 80,457,296.80 : x
  2. Step 2: Convert to fraction form
    140,923,472.80/211,385,209.20 = 80,457,296.80/x
  3. Step 3: Cross multiply
    140,923,472.80x = 211,385,209.20 × 80,457,296.80
  4. Step 4: Simplify right side
    140,923,472.80x = 17,007,482,515,734,488
  5. Step 5: Solve for x
    x = 17,007,482,515,734,488/140,923,472.80
  6. Step 6: Final answer
    x = 120,685,945.20

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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.