Home / 820,591,342.03-1,228,902,617.92-469,773,387.51

Finding the Fourth Proportional to 820,591,342.03, 1,228,902,617.92 and 469,773,387.51

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Solution

The fourth proportional to 820,591,342.03, 1,228,902,617.92 and 469,773,387.51 is: 703,524,051.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,591,342.03 : 1,228,902,617.92 = 469,773,387.51 : x
  2. Step 2: Convert to fraction form
    820,591,342.03/1,228,902,617.92 = 469,773,387.51/x
  3. Step 3: Cross multiply
    820,591,342.03x = 1,228,902,617.92 × 469,773,387.51
  4. Step 4: Simplify right side
    820,591,342.03x = 577,305,745,740,185,600
  5. Step 5: Solve for x
    x = 577,305,745,740,185,600/820,591,342.03
  6. Step 6: Final answer
    x = 703,524,051.71

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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.