Home / 398,659,778.84-597,972,631.69-136,367,783.72

Finding the Fourth Proportional to 398,659,778.84, 597,972,631.69 and 136,367,783.72

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Solution

The fourth proportional to 398,659,778.84, 597,972,631.69 and 136,367,783.72 is: 204,545,847.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,659,778.84 : 597,972,631.69 = 136,367,783.72 : x
  2. Step 2: Convert to fraction form
    398,659,778.84/597,972,631.69 = 136,367,783.72/x
  3. Step 3: Cross multiply
    398,659,778.84x = 597,972,631.69 × 136,367,783.72
  4. Step 4: Simplify right side
    398,659,778.84x = 81,544,202,510,276,080
  5. Step 5: Solve for x
    x = 81,544,202,510,276,080/398,659,778.84
  6. Step 6: Final answer
    x = 204,545,847.96

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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.