Home / 21,195,842.80-31,793,764.20-5,239,490.80

Finding the Fourth Proportional to 21,195,842.80, 31,793,764.20 and 5,239,490.80

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Solution

The fourth proportional to 21,195,842.80, 31,793,764.20 and 5,239,490.80 is: 7,859,236.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,195,842.80 : 31,793,764.20 = 5,239,490.80 : x
  2. Step 2: Convert to fraction form
    21,195,842.80/31,793,764.20 = 5,239,490.80/x
  3. Step 3: Cross multiply
    21,195,842.80x = 31,793,764.20 × 5,239,490.80
  4. Step 4: Simplify right side
    21,195,842.80x = 166,583,135,023,269.34
  5. Step 5: Solve for x
    x = 166,583,135,023,269.34/21,195,842.80
  6. Step 6: Final answer
    x = 7,859,236.20

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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.