Home / 320,206,851.78-441,885,833.40-173,529,135.78

Finding the Fourth Proportional to 320,206,851.78, 441,885,833.40 and 173,529,135.78

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Solution

The fourth proportional to 320,206,851.78, 441,885,833.40 and 173,529,135.78 is: 239,470,412.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,206,851.78 : 441,885,833.40 = 173,529,135.78 : x
  2. Step 2: Convert to fraction form
    320,206,851.78/441,885,833.40 = 173,529,135.78/x
  3. Step 3: Cross multiply
    320,206,851.78x = 441,885,833.40 × 173,529,135.78
  4. Step 4: Simplify right side
    320,206,851.78x = 76,680,066,783,327,056
  5. Step 5: Solve for x
    x = 76,680,066,783,327,056/320,206,851.78
  6. Step 6: Final answer
    x = 239,470,412.19

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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.