Home / 262,489,003.18-393,728,436.39-78,381,225.05

Finding the Fourth Proportional to 262,489,003.18, 393,728,436.39 and 78,381,225.05

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Solution

The fourth proportional to 262,489,003.18, 393,728,436.39 and 78,381,225.05 is: 117,570,324.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,489,003.18 : 393,728,436.39 = 78,381,225.05 : x
  2. Step 2: Convert to fraction form
    262,489,003.18/393,728,436.39 = 78,381,225.05/x
  3. Step 3: Cross multiply
    262,489,003.18x = 393,728,436.39 × 78,381,225.05
  4. Step 4: Simplify right side
    262,489,003.18x = 30,860,917,179,594,488
  5. Step 5: Solve for x
    x = 30,860,917,179,594,488/262,489,003.18
  6. Step 6: Final answer
    x = 117,570,324.11

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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.