Home / 318,976,756.50-440,188,101.09-172,299,041.94

Finding the Fourth Proportional to 318,976,756.50, 440,188,101.09 and 172,299,041.94

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Solution

The fourth proportional to 318,976,756.50, 440,188,101.09 and 172,299,041.94 is: 237,772,773.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,976,756.50 : 440,188,101.09 = 172,299,041.94 : x
  2. Step 2: Convert to fraction form
    318,976,756.50/440,188,101.09 = 172,299,041.94/x
  3. Step 3: Cross multiply
    318,976,756.50x = 440,188,101.09 × 172,299,041.94
  4. Step 4: Simplify right side
    318,976,756.50x = 75,843,988,091,194,864
  5. Step 5: Solve for x
    x = 75,843,988,091,194,864/318,976,756.50
  6. Step 6: Final answer
    x = 237,772,773.55

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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.