Home / 472,823,999.20-709,235,998.80-255,145,765.60

Finding the Fourth Proportional to 472,823,999.20, 709,235,998.80 and 255,145,765.60

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Solution

The fourth proportional to 472,823,999.20, 709,235,998.80 and 255,145,765.60 is: 382,718,648.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,823,999.20 : 709,235,998.80 = 255,145,765.60 : x
  2. Step 2: Convert to fraction form
    472,823,999.20/709,235,998.80 = 255,145,765.60/x
  3. Step 3: Cross multiply
    472,823,999.20x = 709,235,998.80 × 255,145,765.60
  4. Step 4: Simplify right side
    472,823,999.20x = 180,958,561,904,906,656
  5. Step 5: Solve for x
    x = 180,958,561,904,906,656/472,823,999.20
  6. Step 6: Final answer
    x = 382,718,648.40

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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.