Home / 20,630,288.70-28,470,480.98-11,338,188.14

Finding the Fourth Proportional to 20,630,288.70, 28,470,480.98 and 11,338,188.14

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Solution

The fourth proportional to 20,630,288.70, 28,470,480.98 and 11,338,188.14 is: 15,647,074.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,630,288.70 : 28,470,480.98 = 11,338,188.14 : x
  2. Step 2: Convert to fraction form
    20,630,288.70/28,470,480.98 = 11,338,188.14/x
  3. Step 3: Cross multiply
    20,630,288.70x = 28,470,480.98 × 11,338,188.14
  4. Step 4: Simplify right side
    20,630,288.70x = 322,803,669,588,488.25
  5. Step 5: Solve for x
    x = 322,803,669,588,488.25/20,630,288.70
  6. Step 6: Final answer
    x = 15,647,074.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.