Home / 201,469,857.90-302,279,436.45-80,388,206.70

Finding the Fourth Proportional to 201,469,857.90, 302,279,436.45 and 80,388,206.70

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Solution

The fourth proportional to 201,469,857.90, 302,279,436.45 and 80,388,206.70 is: 120,612,095.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,469,857.90 : 302,279,436.45 = 80,388,206.70 : x
  2. Step 2: Convert to fraction form
    201,469,857.90/302,279,436.45 = 80,388,206.70/x
  3. Step 3: Cross multiply
    201,469,857.90x = 302,279,436.45 × 80,388,206.70
  4. Step 4: Simplify right side
    201,469,857.90x = 24,299,701,818,502,116
  5. Step 5: Solve for x
    x = 24,299,701,818,502,116/201,469,857.90
  6. Step 6: Final answer
    x = 120,612,095.88

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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.