Home / 20,668,904.42-28,521,234.17-11,967,664.30

Finding the Fourth Proportional to 20,668,904.42, 28,521,234.17 and 11,967,664.30

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Solution

The fourth proportional to 20,668,904.42, 28,521,234.17 and 11,967,664.30 is: 16,514,303.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668,904.42 : 28,521,234.17 = 11,967,664.30 : x
  2. Step 2: Convert to fraction form
    20,668,904.42/28,521,234.17 = 11,967,664.30/x
  3. Step 3: Cross multiply
    20,668,904.42x = 28,521,234.17 × 11,967,664.30
  4. Step 4: Simplify right side
    20,668,904.42x = 341,332,555,968,249.19
  5. Step 5: Solve for x
    x = 341,332,555,968,249.19/20,668,904.42
  6. Step 6: Final answer
    x = 16,514,303.28

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