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Finding the Third Proportional to 394,136,143.50 and 554,326,116

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Solution

The third proportional to 394,136,143.50 and 554,326,116 is: 779,622,594.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,136,143.50 : 554,326,116 = 554,326,116 : x
  2. Step 2: Convert to fraction form
    394,136,143.50/554,326,116 = 554,326,116/x
  3. Step 3: Cross multiply
    394,136,143.50x = 554,326,116 × 554,326,116
  4. Step 4: Simplify right side
    394,136,143.50x = 307,277,442,879,645,440
  5. Step 5: Solve for x
    x = 307,277,442,879,645,440/394,136,143.50
  6. Step 6: Final answer
    x = 779,622,594.75

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.