Home / 10,099,843.20-13,938,085.44-5,516,380.80

Finding the Fourth Proportional to 10,099,843.20, 13,938,085.44 and 5,516,380.80

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Solution

The fourth proportional to 10,099,843.20, 13,938,085.44 and 5,516,380.80 is: 7,612,770.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,099,843.20 : 13,938,085.44 = 5,516,380.80 : x
  2. Step 2: Convert to fraction form
    10,099,843.20/13,938,085.44 = 5,516,380.80/x
  3. Step 3: Cross multiply
    10,099,843.20x = 13,938,085.44 × 5,516,380.80
  4. Step 4: Simplify right side
    10,099,843.20x = 76,887,786,909,975.55
  5. Step 5: Solve for x
    x = 76,887,786,909,975.55/10,099,843.20
  6. Step 6: Final answer
    x = 7,612,770.36

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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.