Home / 77,512,824.88-116,265,372.48-28,987,111.20

Finding the Fourth Proportional to 77,512,824.88, 116,265,372.48 and 28,987,111.20

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Solution

The fourth proportional to 77,512,824.88, 116,265,372.48 and 28,987,111.20 is: 43,479,221.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,512,824.88 : 116,265,372.48 = 28,987,111.20 : x
  2. Step 2: Convert to fraction form
    77,512,824.88/116,265,372.48 = 28,987,111.20/x
  3. Step 3: Cross multiply
    77,512,824.88x = 116,265,372.48 × 28,987,111.20
  4. Step 4: Simplify right side
    77,512,824.88x = 3,370,197,280,787,180
  5. Step 5: Solve for x
    x = 3,370,197,280,787,180/77,512,824.88
  6. Step 6: Final answer
    x = 43,479,221.48

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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.