Home / 324,284,289.80-486,911,817.46-280,700,222.90

Finding the Fourth Proportional to 324,284,289.80, 486,911,817.46 and 280,700,222.90

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Solution

The fourth proportional to 324,284,289.80, 486,911,817.46 and 280,700,222.90 is: 421,470,481.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,284,289.80 : 486,911,817.46 = 280,700,222.90 : x
  2. Step 2: Convert to fraction form
    324,284,289.80/486,911,817.46 = 280,700,222.90/x
  3. Step 3: Cross multiply
    324,284,289.80x = 486,911,817.46 × 280,700,222.90
  4. Step 4: Simplify right side
    324,284,289.80x = 136,676,255,693,666,096
  5. Step 5: Solve for x
    x = 136,676,255,693,666,096/324,284,289.80
  6. Step 6: Final answer
    x = 421,470,481.28

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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.