Home / 442,928,644.20-664,193,900.70-170,208,772.20

Finding the Fourth Proportional to 442,928,644.20, 664,193,900.70 and 170,208,772.20

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Solution

The fourth proportional to 442,928,644.20, 664,193,900.70 and 170,208,772.20 is: 255,236,661.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,928,644.20 : 664,193,900.70 = 170,208,772.20 : x
  2. Step 2: Convert to fraction form
    442,928,644.20/664,193,900.70 = 170,208,772.20/x
  3. Step 3: Cross multiply
    442,928,644.20x = 664,193,900.70 × 170,208,772.20
  4. Step 4: Simplify right side
    442,928,644.20x = 113,051,628,340,875,728
  5. Step 5: Solve for x
    x = 113,051,628,340,875,728/442,928,644.20
  6. Step 6: Final answer
    x = 255,236,661.30

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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.