Home / 69,405,389.76-104,108,078.32-30,543,841.77

Finding the Fourth Proportional to 69,405,389.76, 104,108,078.32 and 30,543,841.77

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Solution

The fourth proportional to 69,405,389.76, 104,108,078.32 and 30,543,841.77 is: 45,815,759.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,405,389.76 : 104,108,078.32 = 30,543,841.77 : x
  2. Step 2: Convert to fraction form
    69,405,389.76/104,108,078.32 = 30,543,841.77/x
  3. Step 3: Cross multiply
    69,405,389.76x = 104,108,078.32 × 30,543,841.77
  4. Step 4: Simplify right side
    69,405,389.76x = 3,179,860,670,718,082.50
  5. Step 5: Solve for x
    x = 3,179,860,670,718,082.50/69,405,389.76
  6. Step 6: Final answer
    x = 45,815,759.86

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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.