Home / 12,880,579.98-17,790,789.87-9,390,391.50

Finding the Fourth Proportional to 12,880,579.98, 17,790,789.87 and 9,390,391.50

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Solution

The fourth proportional to 12,880,579.98, 17,790,789.87 and 9,390,391.50 is: 12,970,105.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880,579.98 : 17,790,789.87 = 9,390,391.50 : x
  2. Step 2: Convert to fraction form
    12,880,579.98/17,790,789.87 = 9,390,391.50/x
  3. Step 3: Cross multiply
    12,880,579.98x = 17,790,789.87 × 9,390,391.50
  4. Step 4: Simplify right side
    12,880,579.98x = 167,062,481,973,534.12
  5. Step 5: Solve for x
    x = 167,062,481,973,534.12/12,880,579.98
  6. Step 6: Final answer
    x = 12,970,105.56

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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.