Home / 138,232,749.76-190,761,844.84-75,509,717.90

Finding the Fourth Proportional to 138,232,749.76, 190,761,844.84 and 75,509,717.90

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Solution

The fourth proportional to 138,232,749.76, 190,761,844.84 and 75,509,717.90 is: 104,203,765.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,232,749.76 : 190,761,844.84 = 75,509,717.90 : x
  2. Step 2: Convert to fraction form
    138,232,749.76/190,761,844.84 = 75,509,717.90/x
  3. Step 3: Cross multiply
    138,232,749.76x = 190,761,844.84 × 75,509,717.90
  4. Step 4: Simplify right side
    138,232,749.76x = 14,404,373,089,951,972
  5. Step 5: Solve for x
    x = 14,404,373,089,951,972/138,232,749.76
  6. Step 6: Final answer
    x = 104,203,765.86

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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.