Home / 121,115,967.18-181,610,112.24-52,878,942.78

Finding the Fourth Proportional to 121,115,967.18, 181,610,112.24 and 52,878,942.78

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Solution

The fourth proportional to 121,115,967.18, 181,610,112.24 and 52,878,942.78 is: 79,290,542.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,115,967.18 : 181,610,112.24 = 52,878,942.78 : x
  2. Step 2: Convert to fraction form
    121,115,967.18/181,610,112.24 = 52,878,942.78/x
  3. Step 3: Cross multiply
    121,115,967.18x = 181,610,112.24 × 52,878,942.78
  4. Step 4: Simplify right side
    121,115,967.18x = 9,603,350,733,408,338
  5. Step 5: Solve for x
    x = 9,603,350,733,408,338/121,115,967.18
  6. Step 6: Final answer
    x = 79,290,542.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.