Home / 442,940,992.80-664,411,489.20-339,628,862.40

Finding the Fourth Proportional to 442,940,992.80, 664,411,489.20 and 339,628,862.40

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Solution

The fourth proportional to 442,940,992.80, 664,411,489.20 and 339,628,862.40 is: 509,443,293.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,940,992.80 : 664,411,489.20 = 339,628,862.40 : x
  2. Step 2: Convert to fraction form
    442,940,992.80/664,411,489.20 = 339,628,862.40/x
  3. Step 3: Cross multiply
    442,940,992.80x = 664,411,489.20 × 339,628,862.40
  4. Step 4: Simplify right side
    442,940,992.80x = 225,653,318,242,485,888
  5. Step 5: Solve for x
    x = 225,653,318,242,485,888/442,940,992.80
  6. Step 6: Final answer
    x = 509,443,293.60

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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.