Home / 8,255,279.20-12,372,421.20-7,352,485.60

Finding the Fourth Proportional to 8,255,279.20, 12,372,421.20 and 7,352,485.60

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Solution

The fourth proportional to 8,255,279.20, 12,372,421.20 and 7,352,485.60 is: 11,019,378.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255,279.20 : 12,372,421.20 = 7,352,485.60 : x
  2. Step 2: Convert to fraction form
    8,255,279.20/12,372,421.20 = 7,352,485.60/x
  3. Step 3: Cross multiply
    8,255,279.20x = 12,372,421.20 × 7,352,485.60
  4. Step 4: Simplify right side
    8,255,279.20x = 90,968,048,710,134.70
  5. Step 5: Solve for x
    x = 90,968,048,710,134.70/8,255,279.20
  6. Step 6: Final answer
    x = 11,019,378.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.