Home / 221,245,336.40-331,584,569.40-196,869,909.20

Finding the Fourth Proportional to 221,245,336.40, 331,584,569.40 and 196,869,909.20

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Solution

The fourth proportional to 221,245,336.40, 331,584,569.40 and 196,869,909.20 is: 295,052,655.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,245,336.40 : 331,584,569.40 = 196,869,909.20 : x
  2. Step 2: Convert to fraction form
    221,245,336.40/331,584,569.40 = 196,869,909.20/x
  3. Step 3: Cross multiply
    221,245,336.40x = 331,584,569.40 × 196,869,909.20
  4. Step 4: Simplify right side
    221,245,336.40x = 65,279,024,069,899,088
  5. Step 5: Solve for x
    x = 65,279,024,069,899,088/221,245,336.40
  6. Step 6: Final answer
    x = 295,052,655.72

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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.