Home / 221,667,834.72-305,888,464.70-122,542,670.67

Finding the Fourth Proportional to 221,667,834.72, 305,888,464.70 and 122,542,670.67

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Solution

The fourth proportional to 221,667,834.72, 305,888,464.70 and 122,542,670.67 is: 169,101,617.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,667,834.72 : 305,888,464.70 = 122,542,670.67 : x
  2. Step 2: Convert to fraction form
    221,667,834.72/305,888,464.70 = 122,542,670.67/x
  3. Step 3: Cross multiply
    221,667,834.72x = 305,888,464.70 × 122,542,670.67
  4. Step 4: Simplify right side
    221,667,834.72x = 37,484,389,390,871,304
  5. Step 5: Solve for x
    x = 37,484,389,390,871,304/221,667,834.72
  6. Step 6: Final answer
    x = 169,101,617.46

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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.