Home / 20,809,045.80-31,216,559.04-6,433,234.56

Finding the Fourth Proportional to 20,809,045.80, 31,216,559.04 and 6,433,234.56

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Solution

The fourth proportional to 20,809,045.80, 31,216,559.04 and 6,433,234.56 is: 9,650,776.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,809,045.80 : 31,216,559.04 = 6,433,234.56 : x
  2. Step 2: Convert to fraction form
    20,809,045.80/31,216,559.04 = 6,433,234.56/x
  3. Step 3: Cross multiply
    20,809,045.80x = 31,216,559.04 × 6,433,234.56
  4. Step 4: Simplify right side
    20,809,045.80x = 200,823,446,460,408.41
  5. Step 5: Solve for x
    x = 200,823,446,460,408.41/20,809,045.80
  6. Step 6: Final answer
    x = 9,650,776.32

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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.