Home / 143,982,046-198,695,220.39-77,902,544.27

Finding the Fourth Proportional to 143,982,046, 198,695,220.39 and 77,902,544.27

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Solution

The fourth proportional to 143,982,046, 198,695,220.39 and 77,902,544.27 is: 107,505,509.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,982,046 : 198,695,220.39 = 77,902,544.27 : x
  2. Step 2: Convert to fraction form
    143,982,046/198,695,220.39 = 77,902,544.27/x
  3. Step 3: Cross multiply
    143,982,046x = 198,695,220.39 × 77,902,544.27
  4. Step 4: Simplify right side
    143,982,046x = 15,478,863,202,669,380
  5. Step 5: Solve for x
    x = 15,478,863,202,669,380/143,982,046
  6. Step 6: Final answer
    x = 107,505,509.42

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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.