Home / 15,401,391.66-21,254,171.15-8,431,951.59

Finding the Fourth Proportional to 15,401,391.66, 21,254,171.15 and 8,431,951.59

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Solution

The fourth proportional to 15,401,391.66, 21,254,171.15 and 8,431,951.59 is: 11,636,230.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,401,391.66 : 21,254,171.15 = 8,431,951.59 : x
  2. Step 2: Convert to fraction form
    15,401,391.66/21,254,171.15 = 8,431,951.59/x
  3. Step 3: Cross multiply
    15,401,391.66x = 21,254,171.15 × 8,431,951.59
  4. Step 4: Simplify right side
    15,401,391.66x = 179,214,142,222,374.62
  5. Step 5: Solve for x
    x = 179,214,142,222,374.62/15,401,391.66
  6. Step 6: Final answer
    x = 11,636,230.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.