Home / 811,204,961.09-1,216,637,168.25-228,803,007.56

Finding the Fourth Proportional to 811,204,961.09, 1,216,637,168.25 and 228,803,007.56

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Solution

The fourth proportional to 811,204,961.09, 1,216,637,168.25 and 228,803,007.56 is: 343,156,485.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,204,961.09 : 1,216,637,168.25 = 228,803,007.56 : x
  2. Step 2: Convert to fraction form
    811,204,961.09/1,216,637,168.25 = 228,803,007.56/x
  3. Step 3: Cross multiply
    811,204,961.09x = 1,216,637,168.25 × 228,803,007.56
  4. Step 4: Simplify right side
    811,204,961.09x = 278,370,243,204,881,760
  5. Step 5: Solve for x
    x = 278,370,243,204,881,760/811,204,961.09
  6. Step 6: Final answer
    x = 343,156,485.18

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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.