Home / 781,270,265.25-1,077,662,553.24-463,505,538.96

Finding the Fourth Proportional to 781,270,265.25, 1,077,662,553.24 and 463,505,538.96

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Solution

The fourth proportional to 781,270,265.25, 1,077,662,553.24 and 463,505,538.96 is: 639,346,695.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,270,265.25 : 1,077,662,553.24 = 463,505,538.96 : x
  2. Step 2: Convert to fraction form
    781,270,265.25/1,077,662,553.24 = 463,505,538.96/x
  3. Step 3: Cross multiply
    781,270,265.25x = 1,077,662,553.24 × 463,505,538.96
  4. Step 4: Simplify right side
    781,270,265.25x = 499,502,562,556,515,904
  5. Step 5: Solve for x
    x = 499,502,562,556,515,904/781,270,265.25
  6. Step 6: Final answer
    x = 639,346,695.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.