Home / 91,174,933.45-126,033,460.73-81,349,201.79

Finding the Fourth Proportional to 91,174,933.45, 126,033,460.73 and 81,349,201.79

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Solution

The fourth proportional to 91,174,933.45, 126,033,460.73 and 81,349,201.79 is: 112,451,098.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,174,933.45 : 126,033,460.73 = 81,349,201.79 : x
  2. Step 2: Convert to fraction form
    91,174,933.45/126,033,460.73 = 81,349,201.79/x
  3. Step 3: Cross multiply
    91,174,933.45x = 126,033,460.73 × 81,349,201.79
  4. Step 4: Simplify right side
    91,174,933.45x = 10,252,721,429,216,812
  5. Step 5: Solve for x
    x = 10,252,721,429,216,812/91,174,933.45
  6. Step 6: Final answer
    x = 112,451,098.58

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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.