Home / 811,204,993.09-1,216,637,216.16-228,803,039.38

Finding the Fourth Proportional to 811,204,993.09, 1,216,637,216.16 and 228,803,039.38

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Solution

The fourth proportional to 811,204,993.09, 1,216,637,216.16 and 228,803,039.38 is: 343,156,532.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,204,993.09 : 1,216,637,216.16 = 228,803,039.38 : x
  2. Step 2: Convert to fraction form
    811,204,993.09/1,216,637,216.16 = 228,803,039.38/x
  3. Step 3: Cross multiply
    811,204,993.09x = 1,216,637,216.16 × 228,803,039.38
  4. Step 4: Simplify right side
    811,204,993.09x = 278,370,292,880,230,080
  5. Step 5: Solve for x
    x = 278,370,292,880,230,080/811,204,993.09
  6. Step 6: Final answer
    x = 343,156,532.88

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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.