Home / 810,561,039.72-1,215,939,945.18-228,295,284.96

Finding the Fourth Proportional to 810,561,039.72, 1,215,939,945.18 and 228,295,284.96

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Solution

The fourth proportional to 810,561,039.72, 1,215,939,945.18 and 228,295,284.96 is: 342,470,637.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,561,039.72 : 1,215,939,945.18 = 228,295,284.96 : x
  2. Step 2: Convert to fraction form
    810,561,039.72/1,215,939,945.18 = 228,295,284.96/x
  3. Step 3: Cross multiply
    810,561,039.72x = 1,215,939,945.18 × 228,295,284.96
  4. Step 4: Simplify right side
    810,561,039.72x = 277,593,356,279,114,912
  5. Step 5: Solve for x
    x = 277,593,356,279,114,912/810,561,039.72
  6. Step 6: Final answer
    x = 342,470,637.84

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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.