Home / 198,782,056.32-297,785,181.09-154,857,144.06

Finding the Fourth Proportional to 198,782,056.32, 297,785,181.09 and 154,857,144.06

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Solution

The fourth proportional to 198,782,056.32, 297,785,181.09 and 154,857,144.06 is: 231,983,527.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,782,056.32 : 297,785,181.09 = 154,857,144.06 : x
  2. Step 2: Convert to fraction form
    198,782,056.32/297,785,181.09 = 154,857,144.06/x
  3. Step 3: Cross multiply
    198,782,056.32x = 297,785,181.09 × 154,857,144.06
  4. Step 4: Simplify right side
    198,782,056.32x = 46,114,162,686,987,312
  5. Step 5: Solve for x
    x = 46,114,162,686,987,312/198,782,056.32
  6. Step 6: Final answer
    x = 231,983,527.79

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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.