Home / 219,002,776.65-302,204,680.38-129,678,696.09

Finding the Fourth Proportional to 219,002,776.65, 302,204,680.38 and 129,678,696.09

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Solution

The fourth proportional to 219,002,776.65, 302,204,680.38 and 129,678,696.09 is: 178,945,260.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,002,776.65 : 302,204,680.38 = 129,678,696.09 : x
  2. Step 2: Convert to fraction form
    219,002,776.65/302,204,680.38 = 129,678,696.09/x
  3. Step 3: Cross multiply
    219,002,776.65x = 302,204,680.38 × 129,678,696.09
  4. Step 4: Simplify right side
    219,002,776.65x = 39,189,508,903,973,608
  5. Step 5: Solve for x
    x = 39,189,508,903,973,608/219,002,776.65
  6. Step 6: Final answer
    x = 178,945,260.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.