Home / 20,932,484.70-31,375,399.05-8,148,740.70

Finding the Fourth Proportional to 20,932,484.70, 31,375,399.05 and 8,148,740.70

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Solution

The fourth proportional to 20,932,484.70, 31,375,399.05 and 8,148,740.70 is: 12,214,029.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,932,484.70 : 31,375,399.05 = 8,148,740.70 : x
  2. Step 2: Convert to fraction form
    20,932,484.70/31,375,399.05 = 8,148,740.70/x
  3. Step 3: Cross multiply
    20,932,484.70x = 31,375,399.05 × 8,148,740.70
  4. Step 4: Simplify right side
    20,932,484.70x = 255,669,991,217,476.34
  5. Step 5: Solve for x
    x = 255,669,991,217,476.34/20,932,484.70
  6. Step 6: Final answer
    x = 12,214,029.77

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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.