Home / 472,393,943.20-708,590,914.80-324,440,768.80

Finding the Fourth Proportional to 472,393,943.20, 708,590,914.80 and 324,440,768.80

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Solution

The fourth proportional to 472,393,943.20, 708,590,914.80 and 324,440,768.80 is: 486,661,153.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,943.20 : 708,590,914.80 = 324,440,768.80 : x
  2. Step 2: Convert to fraction form
    472,393,943.20/708,590,914.80 = 324,440,768.80/x
  3. Step 3: Cross multiply
    472,393,943.20x = 708,590,914.80 × 324,440,768.80
  4. Step 4: Simplify right side
    472,393,943.20x = 229,895,781,162,407,296
  5. Step 5: Solve for x
    x = 229,895,781,162,407,296/472,393,943.20
  6. Step 6: Final answer
    x = 486,661,153.20

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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.