Home / 18,028,712.65-24,879,645.33-9,768,768.42

Finding the Fourth Proportional to 18,028,712.65, 24,879,645.33 and 9,768,768.42

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Solution

The fourth proportional to 18,028,712.65, 24,879,645.33 and 9,768,768.42 is: 13,480,912.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,028,712.65 : 24,879,645.33 = 9,768,768.42 : x
  2. Step 2: Convert to fraction form
    18,028,712.65/24,879,645.33 = 9,768,768.42/x
  3. Step 3: Cross multiply
    18,028,712.65x = 24,879,645.33 × 9,768,768.42
  4. Step 4: Simplify right side
    18,028,712.65x = 243,043,493,476,106.22
  5. Step 5: Solve for x
    x = 243,043,493,476,106.22/18,028,712.65
  6. Step 6: Final answer
    x = 13,480,912.26

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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.