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Finding the Fourth Proportional to 479,363,399.54, 661,978,363.22 and 453,248,013.53

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Solution

The fourth proportional to 479,363,399.54, 661,978,363.22 and 453,248,013.53 is: 625,914,240.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,363,399.54 : 661,978,363.22 = 453,248,013.53 : x
  2. Step 2: Convert to fraction form
    479,363,399.54/661,978,363.22 = 453,248,013.53/x
  3. Step 3: Cross multiply
    479,363,399.54x = 661,978,363.22 × 453,248,013.53
  4. Step 4: Simplify right side
    479,363,399.54x = 300,040,378,127,039,552
  5. Step 5: Solve for x
    x = 300,040,378,127,039,552/479,363,399.54
  6. Step 6: Final answer
    x = 625,914,240.46

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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.