Home / 9,145,708.18-12,620,167.74-5,279,474.90

Finding the Fourth Proportional to 9,145,708.18, 12,620,167.74 and 5,279,474.90

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Solution

The fourth proportional to 9,145,708.18, 12,620,167.74 and 5,279,474.90 is: 7,285,150.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145,708.18 : 12,620,167.74 = 5,279,474.90 : x
  2. Step 2: Convert to fraction form
    9,145,708.18/12,620,167.74 = 5,279,474.90/x
  3. Step 3: Cross multiply
    9,145,708.18x = 12,620,167.74 × 5,279,474.90
  4. Step 4: Simplify right side
    9,145,708.18x = 66,627,858,848,670.15
  5. Step 5: Solve for x
    x = 66,627,858,848,670.15/9,145,708.18
  6. Step 6: Final answer
    x = 7,285,150.32

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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.