Home / 12,390,408.25-17,099,048.26-6,809,001.78

Finding the Fourth Proportional to 12,390,408.25, 17,099,048.26 and 6,809,001.78

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Solution

The fourth proportional to 12,390,408.25, 17,099,048.26 and 6,809,001.78 is: 9,396,579.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,390,408.25 : 17,099,048.26 = 6,809,001.78 : x
  2. Step 2: Convert to fraction form
    12,390,408.25/17,099,048.26 = 6,809,001.78/x
  3. Step 3: Cross multiply
    12,390,408.25x = 17,099,048.26 × 6,809,001.78
  4. Step 4: Simplify right side
    12,390,408.25x = 116,427,449,967,005.38
  5. Step 5: Solve for x
    x = 116,427,449,967,005.38/12,390,408.25
  6. Step 6: Final answer
    x = 9,396,579.00

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1.5x scale

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.