Home / 20,739,771.57-31,111,152.03-7,960,276.27

Finding the Fourth Proportional to 20,739,771.57, 31,111,152.03 and 7,960,276.27

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Solution

The fourth proportional to 20,739,771.57, 31,111,152.03 and 7,960,276.27 is: 11,940,988.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739,771.57 : 31,111,152.03 = 7,960,276.27 : x
  2. Step 2: Convert to fraction form
    20,739,771.57/31,111,152.03 = 7,960,276.27/x
  3. Step 3: Cross multiply
    20,739,771.57x = 31,111,152.03 × 7,960,276.27
  4. Step 4: Simplify right side
    20,739,771.57x = 247,653,365,236,771.31
  5. Step 5: Solve for x
    x = 247,653,365,236,771.31/20,739,771.57
  6. Step 6: Final answer
    x = 11,940,988.09

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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.