Home / 81,777,565.68-122,667,417-27,190,151.22

Finding the Fourth Proportional to 81,777,565.68, 122,667,417 and 27,190,151.22

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Solution

The fourth proportional to 81,777,565.68, 122,667,417 and 27,190,151.22 is: 40,785,582.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,777,565.68 : 122,667,417 = 27,190,151.22 : x
  2. Step 2: Convert to fraction form
    81,777,565.68/122,667,417 = 27,190,151.22/x
  3. Step 3: Cross multiply
    81,777,565.68x = 122,667,417 × 27,190,151.22
  4. Step 4: Simplify right side
    81,777,565.68x = 3,335,345,617,383,461.50
  5. Step 5: Solve for x
    x = 3,335,345,617,383,461.50/81,777,565.68
  6. Step 6: Final answer
    x = 40,785,582.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.