Home / 1,231,589,102-1,699,579,420.92-667,059,940.16

Finding the Fourth Proportional to 1,231,589,102, 1,699,579,420.92 and 667,059,940.16

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Solution

The fourth proportional to 1,231,589,102, 1,699,579,420.92 and 667,059,940.16 is: 920,535,383.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,589,102 : 1,699,579,420.92 = 667,059,940.16 : x
  2. Step 2: Convert to fraction form
    1,231,589,102/1,699,579,420.92 = 667,059,940.16/x
  3. Step 3: Cross multiply
    1,231,589,102x = 1,699,579,420.92 × 667,059,940.16
  4. Step 4: Simplify right side
    1,231,589,102x = 1,133,721,346,816,062,592
  5. Step 5: Solve for x
    x = 1,133,721,346,816,062,592/1,231,589,102
  6. Step 6: Final answer
    x = 920,535,383.90

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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.