Home / 4,747,144.32-7,121,615.04-1,907,478.72

Finding the Fourth Proportional to 4,747,144.32, 7,121,615.04 and 1,907,478.72

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Solution

The fourth proportional to 4,747,144.32, 7,121,615.04 and 1,907,478.72 is: 2,861,579.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747,144.32 : 7,121,615.04 = 1,907,478.72 : x
  2. Step 2: Convert to fraction form
    4,747,144.32/7,121,615.04 = 1,907,478.72/x
  3. Step 3: Cross multiply
    4,747,144.32x = 7,121,615.04 × 1,907,478.72
  4. Step 4: Simplify right side
    4,747,144.32x = 13,584,329,140,831.95
  5. Step 5: Solve for x
    x = 13,584,329,140,831.95/4,747,144.32
  6. Step 6: Final answer
    x = 2,861,579.14

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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.