Home / 123,180,815.44-169,978,006.68-73,611,352.36

Finding the Fourth Proportional to 123,180,815.44, 169,978,006.68 and 73,611,352.36

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Solution

The fourth proportional to 123,180,815.44, 169,978,006.68 and 73,611,352.36 is: 101,576,782.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,180,815.44 : 169,978,006.68 = 73,611,352.36 : x
  2. Step 2: Convert to fraction form
    123,180,815.44/169,978,006.68 = 73,611,352.36/x
  3. Step 3: Cross multiply
    123,180,815.44x = 169,978,006.68 × 73,611,352.36
  4. Step 4: Simplify right side
    123,180,815.44x = 12,512,310,943,171,914
  5. Step 5: Solve for x
    x = 12,512,310,943,171,914/123,180,815.44
  6. Step 6: Final answer
    x = 101,576,782.87

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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.