Home / 20,771,137.92-31,128,856.91-16,165,685.36

Finding the Fourth Proportional to 20,771,137.92, 31,128,856.91 and 16,165,685.36

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Solution

The fourth proportional to 20,771,137.92, 31,128,856.91 and 16,165,685.36 is: 24,226,853.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,771,137.92 : 31,128,856.91 = 16,165,685.36 : x
  2. Step 2: Convert to fraction form
    20,771,137.92/31,128,856.91 = 16,165,685.36/x
  3. Step 3: Cross multiply
    20,771,137.92x = 31,128,856.91 × 16,165,685.36
  4. Step 4: Simplify right side
    20,771,137.92x = 503,219,306,187,049.19
  5. Step 5: Solve for x
    x = 503,219,306,187,049.19/20,771,137.92
  6. Step 6: Final answer
    x = 24,226,853.06

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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.