Home / 442,940,942.80-664,411,414.20-339,628,812.40

Finding the Fourth Proportional to 442,940,942.80, 664,411,414.20 and 339,628,812.40

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Solution

The fourth proportional to 442,940,942.80, 664,411,414.20 and 339,628,812.40 is: 509,443,218.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,940,942.80 : 664,411,414.20 = 339,628,812.40 : x
  2. Step 2: Convert to fraction form
    442,940,942.80/664,411,414.20 = 339,628,812.40/x
  3. Step 3: Cross multiply
    442,940,942.80x = 664,411,414.20 × 339,628,812.40
  4. Step 4: Simplify right side
    442,940,942.80x = 225,653,259,549,750,496
  5. Step 5: Solve for x
    x = 225,653,259,549,750,496/442,940,942.80
  6. Step 6: Final answer
    x = 509,443,218.60

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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.