Home / 221,400,282.60-305,530,378.53-120,928,698.89

Finding the Fourth Proportional to 221,400,282.60, 305,530,378.53 and 120,928,698.89

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Solution

The fourth proportional to 221,400,282.60, 305,530,378.53 and 120,928,698.89 is: 166,880,505.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,400,282.60 : 305,530,378.53 = 120,928,698.89 : x
  2. Step 2: Convert to fraction form
    221,400,282.60/305,530,378.53 = 120,928,698.89/x
  3. Step 3: Cross multiply
    221,400,282.60x = 305,530,378.53 × 120,928,698.89
  4. Step 4: Simplify right side
    221,400,282.60x = 36,947,391,145,474,440
  5. Step 5: Solve for x
    x = 36,947,391,145,474,440/221,400,282.60
  6. Step 6: Final answer
    x = 166,880,505.80

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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.