Home / 377,238,174.77-520,588,706.21-209,970,846.35

Finding the Fourth Proportional to 377,238,174.77, 520,588,706.21 and 209,970,846.35

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Solution

The fourth proportional to 377,238,174.77, 520,588,706.21 and 209,970,846.35 is: 289,759,781.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,238,174.77 : 520,588,706.21 = 209,970,846.35 : x
  2. Step 2: Convert to fraction form
    377,238,174.77/520,588,706.21 = 209,970,846.35/x
  3. Step 3: Cross multiply
    377,238,174.77x = 520,588,706.21 × 209,970,846.35
  4. Step 4: Simplify right side
    377,238,174.77x = 109,308,451,242,115,344
  5. Step 5: Solve for x
    x = 109,308,451,242,115,344/377,238,174.77
  6. Step 6: Final answer
    x = 289,759,781.89

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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.