Home / 142,582,365.36-196,758,573.12-80,701,375.32

Finding the Fourth Proportional to 142,582,365.36, 196,758,573.12 and 80,701,375.32

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Solution

The fourth proportional to 142,582,365.36, 196,758,573.12 and 80,701,375.32 is: 111,365,016.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,582,365.36 : 196,758,573.12 = 80,701,375.32 : x
  2. Step 2: Convert to fraction form
    142,582,365.36/196,758,573.12 = 80,701,375.32/x
  3. Step 3: Cross multiply
    142,582,365.36x = 196,758,573.12 × 80,701,375.32
  4. Step 4: Simplify right side
    142,582,365.36x = 15,878,687,456,784,782
  5. Step 5: Solve for x
    x = 15,878,687,456,784,782/142,582,365.36
  6. Step 6: Final answer
    x = 111,365,016.40

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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.