Home / 38,511,722.77-53,146,222.86-20,870,625.23

Finding the Fourth Proportional to 38,511,722.77, 53,146,222.86 and 20,870,625.23

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Solution

The fourth proportional to 38,511,722.77, 53,146,222.86 and 20,870,625.23 is: 28,801,487.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,511,722.77 : 53,146,222.86 = 20,870,625.23 : x
  2. Step 2: Convert to fraction form
    38,511,722.77/53,146,222.86 = 20,870,625.23/x
  3. Step 3: Cross multiply
    38,511,722.77x = 53,146,222.86 × 20,870,625.23
  4. Step 4: Simplify right side
    38,511,722.77x = 1,109,194,899,807,896.12
  5. Step 5: Solve for x
    x = 1,109,194,899,807,896.12/38,511,722.77
  6. Step 6: Final answer
    x = 28,801,487.44

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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.