Home / 377,238,180.15-520,588,713.64-209,970,851.73

Finding the Fourth Proportional to 377,238,180.15, 520,588,713.64 and 209,970,851.73

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Solution

The fourth proportional to 377,238,180.15, 520,588,713.64 and 209,970,851.73 is: 289,759,789.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,238,180.15 : 520,588,713.64 = 209,970,851.73 : x
  2. Step 2: Convert to fraction form
    377,238,180.15/520,588,713.64 = 209,970,851.73/x
  3. Step 3: Cross multiply
    377,238,180.15x = 520,588,713.64 × 209,970,851.73
  4. Step 4: Simplify right side
    377,238,180.15x = 109,308,455,604,015,856
  5. Step 5: Solve for x
    x = 109,308,455,604,015,856/377,238,180.15
  6. Step 6: Final answer
    x = 289,759,789.32

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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.