Home / 21,246,123-29,321,582.04-12,078,743.88

Finding the Fourth Proportional to 21,246,123, 29,321,582.04 and 12,078,743.88

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Solution

The fourth proportional to 21,246,123, 29,321,582.04 and 12,078,743.88 is: 16,669,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,246,123 : 29,321,582.04 = 12,078,743.88 : x
  2. Step 2: Convert to fraction form
    21,246,123/29,321,582.04 = 12,078,743.88/x
  3. Step 3: Cross multiply
    21,246,123x = 29,321,582.04 × 12,078,743.88
  4. Step 4: Simplify right side
    21,246,123x = 354,167,879,617,567.94
  5. Step 5: Solve for x
    x = 354,167,879,617,567.94/21,246,123
  6. Step 6: Final answer
    x = 16,669,765.10

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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.