Home / 20,778,004.98-31,014,847.62-18,323,682.57

Finding the Fourth Proportional to 20,778,004.98, 31,014,847.62 and 18,323,682.57

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Solution

The fourth proportional to 20,778,004.98, 31,014,847.62 and 18,323,682.57 is: 27,351,337.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,778,004.98 : 31,014,847.62 = 18,323,682.57 : x
  2. Step 2: Convert to fraction form
    20,778,004.98/31,014,847.62 = 18,323,682.57/x
  3. Step 3: Cross multiply
    20,778,004.98x = 31,014,847.62 × 18,323,682.57
  4. Step 4: Simplify right side
    20,778,004.98x = 568,306,222,745,800
  5. Step 5: Solve for x
    x = 568,306,222,745,800/20,778,004.98
  6. Step 6: Final answer
    x = 27,351,337.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.