Home / 810,561,040.72-1,215,939,946.68-228,295,285.96

Finding the Fourth Proportional to 810,561,040.72, 1,215,939,946.68 and 228,295,285.96

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Solution

The fourth proportional to 810,561,040.72, 1,215,939,946.68 and 228,295,285.96 is: 342,470,639.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,561,040.72 : 1,215,939,946.68 = 228,295,285.96 : x
  2. Step 2: Convert to fraction form
    810,561,040.72/1,215,939,946.68 = 228,295,285.96/x
  3. Step 3: Cross multiply
    810,561,040.72x = 1,215,939,946.68 × 228,295,285.96
  4. Step 4: Simplify right side
    810,561,040.72x = 277,593,357,837,497,792
  5. Step 5: Solve for x
    x = 277,593,357,837,497,792/810,561,040.72
  6. Step 6: Final answer
    x = 342,470,639.34

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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.