Home / 442,868,544.80-664,302,817.20-319,786,809.20

Finding the Fourth Proportional to 442,868,544.80, 664,302,817.20 and 319,786,809.20

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Solution

The fourth proportional to 442,868,544.80, 664,302,817.20 and 319,786,809.20 is: 479,680,213.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,868,544.80 : 664,302,817.20 = 319,786,809.20 : x
  2. Step 2: Convert to fraction form
    442,868,544.80/664,302,817.20 = 319,786,809.20/x
  3. Step 3: Cross multiply
    442,868,544.80x = 664,302,817.20 × 319,786,809.20
  4. Step 4: Simplify right side
    442,868,544.80x = 212,435,278,254,958,880
  5. Step 5: Solve for x
    x = 212,435,278,254,958,880/442,868,544.80
  6. Step 6: Final answer
    x = 479,680,213.80

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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.