Home / 7,158,231.92-9,878,213.36-3,895,111.28

Finding the Fourth Proportional to 7,158,231.92, 9,878,213.36 and 3,895,111.28

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Solution

The fourth proportional to 7,158,231.92, 9,878,213.36 and 3,895,111.28 is: 5,375,173.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158,231.92 : 9,878,213.36 = 3,895,111.28 : x
  2. Step 2: Convert to fraction form
    7,158,231.92/9,878,213.36 = 3,895,111.28/x
  3. Step 3: Cross multiply
    7,158,231.92x = 9,878,213.36 × 3,895,111.28
  4. Step 4: Simplify right side
    7,158,231.92x = 38,476,740,284,782.70
  5. Step 5: Solve for x
    x = 38,476,740,284,782.70/7,158,231.92
  6. Step 6: Final answer
    x = 5,375,173.75

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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.