Home / 318,976,710-440,188,036.92-172,298,995.44

Finding the Fourth Proportional to 318,976,710, 440,188,036.92 and 172,298,995.44

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Solution

The fourth proportional to 318,976,710, 440,188,036.92 and 172,298,995.44 is: 237,772,709.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,976,710 : 440,188,036.92 = 172,298,995.44 : x
  2. Step 2: Convert to fraction form
    318,976,710/440,188,036.92 = 172,298,995.44/x
  3. Step 3: Cross multiply
    318,976,710x = 440,188,036.92 × 172,298,995.44
  4. Step 4: Simplify right side
    318,976,710x = 75,843,956,566,021,632
  5. Step 5: Solve for x
    x = 75,843,956,566,021,632/318,976,710
  6. Step 6: Final answer
    x = 237,772,709.38

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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.