Home / 7,190,889.74-9,923,368.86-3,927,706.52

Finding the Fourth Proportional to 7,190,889.74, 9,923,368.86 and 3,927,706.52

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Solution

The fourth proportional to 7,190,889.74, 9,923,368.86 and 3,927,706.52 is: 5,420,202.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190,889.74 : 9,923,368.86 = 3,927,706.52 : x
  2. Step 2: Convert to fraction form
    7,190,889.74/9,923,368.86 = 3,927,706.52/x
  3. Step 3: Cross multiply
    7,190,889.74x = 9,923,368.86 × 3,927,706.52
  4. Step 4: Simplify right side
    7,190,889.74x = 38,976,080,522,170.12
  5. Step 5: Solve for x
    x = 38,976,080,522,170.12/7,190,889.74
  6. Step 6: Final answer
    x = 5,420,202.78

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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.