Home / 20,858,932.50-31,302,281.82-8,572,971.30

Finding the Fourth Proportional to 20,858,932.50, 31,302,281.82 and 8,572,971.30

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Solution

The fourth proportional to 20,858,932.50, 31,302,281.82 and 8,572,971.30 is: 12,865,162.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,858,932.50 : 31,302,281.82 = 8,572,971.30 : x
  2. Step 2: Convert to fraction form
    20,858,932.50/31,302,281.82 = 8,572,971.30/x
  3. Step 3: Cross multiply
    20,858,932.50x = 31,302,281.82 × 8,572,971.30
  4. Step 4: Simplify right side
    20,858,932.50x = 268,353,563,667,371.78
  5. Step 5: Solve for x
    x = 268,353,563,667,371.78/20,858,932.50
  6. Step 6: Final answer
    x = 12,865,162.86

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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.