Home / 539,905,121.70-809,857,682.55-356,239,112.10

Finding the Fourth Proportional to 539,905,121.70, 809,857,682.55 and 356,239,112.10

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Solution

The fourth proportional to 539,905,121.70, 809,857,682.55 and 356,239,112.10 is: 534,358,668.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,905,121.70 : 809,857,682.55 = 356,239,112.10 : x
  2. Step 2: Convert to fraction form
    539,905,121.70/809,857,682.55 = 356,239,112.10/x
  3. Step 3: Cross multiply
    539,905,121.70x = 809,857,682.55 × 356,239,112.10
  4. Step 4: Simplify right side
    539,905,121.70x = 288,502,981,758,975,680
  5. Step 5: Solve for x
    x = 288,502,981,758,975,680/539,905,121.70
  6. Step 6: Final answer
    x = 534,358,668.15

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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.