Home / 203,486,999.20-305,230,498.80-126,002,901.40

Finding the Fourth Proportional to 203,486,999.20, 305,230,498.80 and 126,002,901.40

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Solution

The fourth proportional to 203,486,999.20, 305,230,498.80 and 126,002,901.40 is: 189,004,352.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,486,999.20 : 305,230,498.80 = 126,002,901.40 : x
  2. Step 2: Convert to fraction form
    203,486,999.20/305,230,498.80 = 126,002,901.40/x
  3. Step 3: Cross multiply
    203,486,999.20x = 305,230,498.80 × 126,002,901.40
  4. Step 4: Simplify right side
    203,486,999.20x = 38,459,928,444,569,224
  5. Step 5: Solve for x
    x = 38,459,928,444,569,224/203,486,999.20
  6. Step 6: Final answer
    x = 189,004,352.10

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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.