Home / 512,521,305.66-768,913,003.53-149,015,661.66

Finding the Fourth Proportional to 512,521,305.66, 768,913,003.53 and 149,015,661.66

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Solution

The fourth proportional to 512,521,305.66, 768,913,003.53 and 149,015,661.66 is: 223,561,593.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,521,305.66 : 768,913,003.53 = 149,015,661.66 : x
  2. Step 2: Convert to fraction form
    512,521,305.66/768,913,003.53 = 149,015,661.66/x
  3. Step 3: Cross multiply
    512,521,305.66x = 768,913,003.53 × 149,015,661.66
  4. Step 4: Simplify right side
    512,521,305.66x = 114,580,079,980,000,864
  5. Step 5: Solve for x
    x = 114,580,079,980,000,864/512,521,305.66
  6. Step 6: Final answer
    x = 223,561,593.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.