Home / 91,296,760.42-125,916,066.45-80,259,911.78

Finding the Fourth Proportional to 91,296,760.42, 125,916,066.45 and 80,259,911.78

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Solution

The fourth proportional to 91,296,760.42, 125,916,066.45 and 80,259,911.78 is: 110,694,096.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,296,760.42 : 125,916,066.45 = 80,259,911.78 : x
  2. Step 2: Convert to fraction form
    91,296,760.42/125,916,066.45 = 80,259,911.78/x
  3. Step 3: Cross multiply
    91,296,760.42x = 125,916,066.45 × 80,259,911.78
  4. Step 4: Simplify right side
    91,296,760.42x = 10,106,012,384,961,618
  5. Step 5: Solve for x
    x = 10,106,012,384,961,618/91,296,760.42
  6. Step 6: Final answer
    x = 110,694,096.25

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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.