Home / 12,516,408.38-18,740,975.47-7,942,694.27

Finding the Fourth Proportional to 12,516,408.38, 18,740,975.47 and 7,942,694.27

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Solution

The fourth proportional to 12,516,408.38, 18,740,975.47 and 7,942,694.27 is: 11,892,695.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516,408.38 : 18,740,975.47 = 7,942,694.27 : x
  2. Step 2: Convert to fraction form
    12,516,408.38/18,740,975.47 = 7,942,694.27/x
  3. Step 3: Cross multiply
    12,516,408.38x = 18,740,975.47 × 7,942,694.27
  4. Step 4: Simplify right side
    12,516,408.38x = 148,853,838,386,074.66
  5. Step 5: Solve for x
    x = 148,853,838,386,074.66/12,516,408.38
  6. Step 6: Final answer
    x = 11,892,695.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.