Home / 5,397,642-7,443,924.72-4,478,415.84

Finding the Fourth Proportional to 5,397,642, 7,443,924.72 and 4,478,415.84

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Solution

The fourth proportional to 5,397,642, 7,443,924.72 and 4,478,415.84 is: 6,176,213.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,397,642 : 7,443,924.72 = 4,478,415.84 : x
  2. Step 2: Convert to fraction form
    5,397,642/7,443,924.72 = 4,478,415.84/x
  3. Step 3: Cross multiply
    5,397,642x = 7,443,924.72 × 4,478,415.84
  4. Step 4: Simplify right side
    5,397,642x = 33,336,990,377,815.56
  5. Step 5: Solve for x
    x = 33,336,990,377,815.56/5,397,642
  6. Step 6: Final answer
    x = 6,176,213.68

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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.