Home / 149,256,128.28-205,970,657.22-83,175,170.88

Finding the Fourth Proportional to 149,256,128.28, 205,970,657.22 and 83,175,170.88

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Solution

The fourth proportional to 149,256,128.28, 205,970,657.22 and 83,175,170.88 is: 114,780,175.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,256,128.28 : 205,970,657.22 = 83,175,170.88 : x
  2. Step 2: Convert to fraction form
    149,256,128.28/205,970,657.22 = 83,175,170.88/x
  3. Step 3: Cross multiply
    149,256,128.28x = 205,970,657.22 × 83,175,170.88
  4. Step 4: Simplify right side
    149,256,128.28x = 17,131,644,610,539,404
  5. Step 5: Solve for x
    x = 17,131,644,610,539,404/149,256,128.28
  6. Step 6: Final answer
    x = 114,780,175.58

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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.