Home / 811,384,233.78-1,217,286,187.83-475,145,736.72

Finding the Fourth Proportional to 811,384,233.78, 1,217,286,187.83 and 475,145,736.72

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Solution

The fourth proportional to 811,384,233.78, 1,217,286,187.83 and 475,145,736.72 is: 712,841,485.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,384,233.78 : 1,217,286,187.83 = 475,145,736.72 : x
  2. Step 2: Convert to fraction form
    811,384,233.78/1,217,286,187.83 = 475,145,736.72/x
  3. Step 3: Cross multiply
    811,384,233.78x = 1,217,286,187.83 × 475,145,736.72
  4. Step 4: Simplify right side
    811,384,233.78x = 578,388,342,515,565,696
  5. Step 5: Solve for x
    x = 578,388,342,515,565,696/811,384,233.78
  6. Step 6: Final answer
    x = 712,841,485.50

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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.