Home / 20,630,291.13-28,470,484.34-11,338,190.58

Finding the Fourth Proportional to 20,630,291.13, 28,470,484.34 and 11,338,190.58

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Solution

The fourth proportional to 20,630,291.13, 28,470,484.34 and 11,338,190.58 is: 15,647,078.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,630,291.13 : 28,470,484.34 = 11,338,190.58 : x
  2. Step 2: Convert to fraction form
    20,630,291.13/28,470,484.34 = 11,338,190.58/x
  3. Step 3: Cross multiply
    20,630,291.13x = 28,470,484.34 × 11,338,190.58
  4. Step 4: Simplify right side
    20,630,291.13x = 322,803,777,295,134.56
  5. Step 5: Solve for x
    x = 322,803,777,295,134.56/20,630,291.13
  6. Step 6: Final answer
    x = 15,647,078.14

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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.