Home / 320,206,858.80-441,885,843.04-173,529,142.80

Finding the Fourth Proportional to 320,206,858.80, 441,885,843.04 and 173,529,142.80

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Solution

The fourth proportional to 320,206,858.80, 441,885,843.04 and 173,529,142.80 is: 239,470,421.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,206,858.80 : 441,885,843.04 = 173,529,142.80 : x
  2. Step 2: Convert to fraction form
    320,206,858.80/441,885,843.04 = 173,529,142.80/x
  3. Step 3: Cross multiply
    320,206,858.80x = 441,885,843.04 × 173,529,142.80
  4. Step 4: Simplify right side
    320,206,858.80x = 76,680,071,558,186,560
  5. Step 5: Solve for x
    x = 76,680,071,558,186,560/320,206,858.80
  6. Step 6: Final answer
    x = 239,470,421.86

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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.