Home / 91,539,165.70-126,203,843.59-66,057,201.60

Finding the Fourth Proportional to 91,539,165.70, 126,203,843.59 and 66,057,201.60

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Solution

The fourth proportional to 91,539,165.70, 126,203,843.59 and 66,057,201.60 is: 91,072,194.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,539,165.70 : 126,203,843.59 = 66,057,201.60 : x
  2. Step 2: Convert to fraction form
    91,539,165.70/126,203,843.59 = 66,057,201.60/x
  3. Step 3: Cross multiply
    91,539,165.70x = 126,203,843.59 × 66,057,201.60
  4. Step 4: Simplify right side
    91,539,165.70x = 8,336,672,738,719,498
  5. Step 5: Solve for x
    x = 8,336,672,738,719,498/91,539,165.70
  6. Step 6: Final answer
    x = 91,072,194.89

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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.