Home / 220,363,429.40-330,147,012.90-188,512,933.40

Finding the Fourth Proportional to 220,363,429.40, 330,147,012.90 and 188,512,933.40

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Solution

The fourth proportional to 220,363,429.40, 330,147,012.90 and 188,512,933.40 is: 282,428,813.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,363,429.40 : 330,147,012.90 = 188,512,933.40 : x
  2. Step 2: Convert to fraction form
    220,363,429.40/330,147,012.90 = 188,512,933.40/x
  3. Step 3: Cross multiply
    220,363,429.40x = 330,147,012.90 × 188,512,933.40
  4. Step 4: Simplify right side
    220,363,429.40x = 62,236,981,855,026,640
  5. Step 5: Solve for x
    x = 62,236,981,855,026,640/220,363,429.40
  6. Step 6: Final answer
    x = 282,428,813.28

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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.