Home / 330,829,972.80-496,351,247.40-221,778,279.60

Finding the Fourth Proportional to 330,829,972.80, 496,351,247.40 and 221,778,279.60

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Solution

The fourth proportional to 330,829,972.80, 496,351,247.40 and 221,778,279.60 is: 332,738,671.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,829,972.80 : 496,351,247.40 = 221,778,279.60 : x
  2. Step 2: Convert to fraction form
    330,829,972.80/496,351,247.40 = 221,778,279.60/x
  3. Step 3: Cross multiply
    330,829,972.80x = 496,351,247.40 × 221,778,279.60
  4. Step 4: Simplify right side
    330,829,972.80x = 110,079,925,725,685,968
  5. Step 5: Solve for x
    x = 110,079,925,725,685,968/330,829,972.80
  6. Step 6: Final answer
    x = 332,738,671.75

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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.