Home / 208,264,382.44-312,399,848.22-78,837,243.88

Finding the Fourth Proportional to 208,264,382.44, 312,399,848.22 and 78,837,243.88

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Solution

The fourth proportional to 208,264,382.44, 312,399,848.22 and 78,837,243.88 is: 118,257,105.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,264,382.44 : 312,399,848.22 = 78,837,243.88 : x
  2. Step 2: Convert to fraction form
    208,264,382.44/312,399,848.22 = 78,837,243.88/x
  3. Step 3: Cross multiply
    208,264,382.44x = 312,399,848.22 × 78,837,243.88
  4. Step 4: Simplify right side
    208,264,382.44x = 24,628,743,022,195,124
  5. Step 5: Solve for x
    x = 24,628,743,022,195,124/208,264,382.44
  6. Step 6: Final answer
    x = 118,257,105.39

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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.