Home / 221,233,429.20-331,850,143.80-199,314,440.40

Finding the Fourth Proportional to 221,233,429.20, 331,850,143.80 and 199,314,440.40

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Solution

The fourth proportional to 221,233,429.20, 331,850,143.80 and 199,314,440.40 is: 298,971,660.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,233,429.20 : 331,850,143.80 = 199,314,440.40 : x
  2. Step 2: Convert to fraction form
    221,233,429.20/331,850,143.80 = 199,314,440.40/x
  3. Step 3: Cross multiply
    221,233,429.20x = 331,850,143.80 × 199,314,440.40
  4. Step 4: Simplify right side
    221,233,429.20x = 66,142,525,708,156,536
  5. Step 5: Solve for x
    x = 66,142,525,708,156,536/221,233,429.20
  6. Step 6: Final answer
    x = 298,971,660.60

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1.5x scale

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.