Home / 143,982,045.75-198,695,220.04-77,902,544.02

Finding the Fourth Proportional to 143,982,045.75, 198,695,220.04 and 77,902,544.02

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Solution

The fourth proportional to 143,982,045.75, 198,695,220.04 and 77,902,544.02 is: 107,505,509.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,982,045.75 : 198,695,220.04 = 77,902,544.02 : x
  2. Step 2: Convert to fraction form
    143,982,045.75/198,695,220.04 = 77,902,544.02/x
  3. Step 3: Cross multiply
    143,982,045.75x = 198,695,220.04 × 77,902,544.02
  4. Step 4: Simplify right side
    143,982,045.75x = 15,478,863,125,729,684
  5. Step 5: Solve for x
    x = 15,478,863,125,729,684/143,982,045.75
  6. Step 6: Final answer
    x = 107,505,509.07

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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.