Home / 20,721,317.85-31,081,976.78-16,186,354.65

Finding the Fourth Proportional to 20,721,317.85, 31,081,976.78 and 16,186,354.65

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Solution

The fourth proportional to 20,721,317.85, 31,081,976.78 and 16,186,354.65 is: 24,279,531.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,721,317.85 : 31,081,976.78 = 16,186,354.65 : x
  2. Step 2: Convert to fraction form
    20,721,317.85/31,081,976.78 = 16,186,354.65/x
  3. Step 3: Cross multiply
    20,721,317.85x = 31,081,976.78 × 16,186,354.65
  4. Step 4: Simplify right side
    20,721,317.85x = 503,103,899,303,213.25
  5. Step 5: Solve for x
    x = 503,103,899,303,213.25/20,721,317.85
  6. Step 6: Final answer
    x = 24,279,531.98

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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.