Home / 72,983,896.40-100,718,043.94-39,493,375.78

Finding the Fourth Proportional to 72,983,896.40, 100,718,043.94 and 39,493,375.78

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Solution

The fourth proportional to 72,983,896.40, 100,718,043.94 and 39,493,375.78 is: 54,501,003.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,983,896.40 : 100,718,043.94 = 39,493,375.78 : x
  2. Step 2: Convert to fraction form
    72,983,896.40/100,718,043.94 = 39,493,375.78/x
  3. Step 3: Cross multiply
    72,983,896.40x = 100,718,043.94 × 39,493,375.78
  4. Step 4: Simplify right side
    72,983,896.40x = 3,977,695,557,148,972
  5. Step 5: Solve for x
    x = 3,977,695,557,148,972/72,983,896.40
  6. Step 6: Final answer
    x = 54,501,003.01

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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.