Home / 9,005,991.36-12,430,144.56-8,279,688.60

Finding the Fourth Proportional to 9,005,991.36, 12,430,144.56 and 8,279,688.60

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Solution

The fourth proportional to 9,005,991.36, 12,430,144.56 and 8,279,688.60 is: 11,427,695.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,005,991.36 : 12,430,144.56 = 8,279,688.60 : x
  2. Step 2: Convert to fraction form
    9,005,991.36/12,430,144.56 = 8,279,688.60/x
  3. Step 3: Cross multiply
    9,005,991.36x = 12,430,144.56 × 8,279,688.60
  4. Step 4: Simplify right side
    9,005,991.36x = 102,917,726,209,784.02
  5. Step 5: Solve for x
    x = 102,917,726,209,784.02/9,005,991.36
  6. Step 6: Final answer
    x = 11,427,695.42

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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.