Home / 7,145,855.32-9,861,721.52-4,089,999.64

Finding the Fourth Proportional to 7,145,855.32, 9,861,721.52 and 4,089,999.64

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Solution

The fourth proportional to 7,145,855.32, 9,861,721.52 and 4,089,999.64 is: 5,644,452.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145,855.32 : 9,861,721.52 = 4,089,999.64 : x
  2. Step 2: Convert to fraction form
    7,145,855.32/9,861,721.52 = 4,089,999.64/x
  3. Step 3: Cross multiply
    7,145,855.32x = 9,861,721.52 × 4,089,999.64
  4. Step 4: Simplify right side
    7,145,855.32x = 40,334,437,466,580.25
  5. Step 5: Solve for x
    x = 40,334,437,466,580.25/7,145,855.32
  6. Step 6: Final answer
    x = 5,644,452.02

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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.