Home / 442,940,976.80-664,411,465.20-339,628,846.40

Finding the Fourth Proportional to 442,940,976.80, 664,411,465.20 and 339,628,846.40

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Solution

The fourth proportional to 442,940,976.80, 664,411,465.20 and 339,628,846.40 is: 509,443,269.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,940,976.80 : 664,411,465.20 = 339,628,846.40 : x
  2. Step 2: Convert to fraction form
    442,940,976.80/664,411,465.20 = 339,628,846.40/x
  3. Step 3: Cross multiply
    442,940,976.80x = 664,411,465.20 × 339,628,846.40
  4. Step 4: Simplify right side
    442,940,976.80x = 225,653,299,460,809,760
  5. Step 5: Solve for x
    x = 225,653,299,460,809,760/442,940,976.80
  6. Step 6: Final answer
    x = 509,443,269.60

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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.