Home / 8,317,921.80-12,458,220.30-8,131,297.80

Finding the Fourth Proportional to 8,317,921.80, 12,458,220.30 and 8,131,297.80

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Solution

The fourth proportional to 8,317,921.80, 12,458,220.30 and 8,131,297.80 is: 12,178,703.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,317,921.80 : 12,458,220.30 = 8,131,297.80 : x
  2. Step 2: Convert to fraction form
    8,317,921.80/12,458,220.30 = 8,131,297.80/x
  3. Step 3: Cross multiply
    8,317,921.80x = 12,458,220.30 × 8,131,297.80
  4. Step 4: Simplify right side
    8,317,921.80x = 101,301,499,317,305.34
  5. Step 5: Solve for x
    x = 101,301,499,317,305.34/8,317,921.80
  6. Step 6: Final answer
    x = 12,178,703.02

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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.