Home / 72,707,949.06-100,333,467.93-39,666,231.30

Finding the Fourth Proportional to 72,707,949.06, 100,333,467.93 and 39,666,231.30

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Solution

The fourth proportional to 72,707,949.06, 100,333,467.93 and 39,666,231.30 is: 54,737,488.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,707,949.06 : 100,333,467.93 = 39,666,231.30 : x
  2. Step 2: Convert to fraction form
    72,707,949.06/100,333,467.93 = 39,666,231.30/x
  3. Step 3: Cross multiply
    72,707,949.06x = 100,333,467.93 × 39,666,231.30
  4. Step 4: Simplify right side
    72,707,949.06x = 3,979,850,546,042,512
  5. Step 5: Solve for x
    x = 3,979,850,546,042,512/72,707,949.06
  6. Step 6: Final answer
    x = 54,737,488.78

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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.