Home / 618,375,400.11-853,768,972.98-475,065,923.09

Finding the Fourth Proportional to 618,375,400.11, 853,768,972.98 and 475,065,923.09

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Solution

The fourth proportional to 618,375,400.11, 853,768,972.98 and 475,065,923.09 is: 655,906,663.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,375,400.11 : 853,768,972.98 = 475,065,923.09 : x
  2. Step 2: Convert to fraction form
    618,375,400.11/853,768,972.98 = 475,065,923.09/x
  3. Step 3: Cross multiply
    618,375,400.11x = 853,768,972.98 × 475,065,923.09
  4. Step 4: Simplify right side
    618,375,400.11x = 405,596,545,250,076,096
  5. Step 5: Solve for x
    x = 405,596,545,250,076,096/618,375,400.11
  6. Step 6: Final answer
    x = 655,906,663.13

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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.