Home / 138,347,744.52-190,923,947.64-75,627,308.64

Finding the Fourth Proportional to 138,347,744.52, 190,923,947.64 and 75,627,308.64

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Solution

The fourth proportional to 138,347,744.52, 190,923,947.64 and 75,627,308.64 is: 104,367,905.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,347,744.52 : 190,923,947.64 = 75,627,308.64 : x
  2. Step 2: Convert to fraction form
    138,347,744.52/190,923,947.64 = 75,627,308.64/x
  3. Step 3: Cross multiply
    138,347,744.52x = 190,923,947.64 × 75,627,308.64
  4. Step 4: Simplify right side
    138,347,744.52x = 14,439,064,314,937,478
  5. Step 5: Solve for x
    x = 14,439,064,314,937,478/138,347,744.52
  6. Step 6: Final answer
    x = 104,367,905.42

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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.