Home / 820,059,243.84-1,131,681,025.37-462,902,197.79

Finding the Fourth Proportional to 820,059,243.84, 1,131,681,025.37 and 462,902,197.79

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Solution

The fourth proportional to 820,059,243.84, 1,131,681,025.37 and 462,902,197.79 is: 638,804,620.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,059,243.84 : 1,131,681,025.37 = 462,902,197.79 : x
  2. Step 2: Convert to fraction form
    820,059,243.84/1,131,681,025.37 = 462,902,197.79/x
  3. Step 3: Cross multiply
    820,059,243.84x = 1,131,681,025.37 × 462,902,197.79
  4. Step 4: Simplify right side
    820,059,243.84x = 523,857,633,845,000,192
  5. Step 5: Solve for x
    x = 523,857,633,845,000,192/820,059,243.84
  6. Step 6: Final answer
    x = 638,804,620.25

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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.