Home / 20,739,781.23-31,111,166.55-7,960,285.94

Finding the Fourth Proportional to 20,739,781.23, 31,111,166.55 and 7,960,285.94

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Solution

The fourth proportional to 20,739,781.23, 31,111,166.55 and 7,960,285.94 is: 11,941,002.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739,781.23 : 31,111,166.55 = 7,960,285.94 : x
  2. Step 2: Convert to fraction form
    20,739,781.23/31,111,166.55 = 7,960,285.94/x
  3. Step 3: Cross multiply
    20,739,781.23x = 31,111,166.55 × 7,960,285.94
  4. Step 4: Simplify right side
    20,739,781.23x = 247,653,781,469,606.03
  5. Step 5: Solve for x
    x = 247,653,781,469,606.03/20,739,781.23
  6. Step 6: Final answer
    x = 11,941,002.59

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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.