Home / 409,867,940.42-614,801,428.78-133,518,702.43

Finding the Fourth Proportional to 409,867,940.42, 614,801,428.78 and 133,518,702.43

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Solution

The fourth proportional to 409,867,940.42, 614,801,428.78 and 133,518,702.43 is: 200,277,896.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,867,940.42 : 614,801,428.78 = 133,518,702.43 : x
  2. Step 2: Convert to fraction form
    409,867,940.42/614,801,428.78 = 133,518,702.43/x
  3. Step 3: Cross multiply
    409,867,940.42x = 614,801,428.78 × 133,518,702.43
  4. Step 4: Simplify right side
    409,867,940.42x = 82,087,489,022,815,664
  5. Step 5: Solve for x
    x = 82,087,489,022,815,664/409,867,940.42
  6. Step 6: Final answer
    x = 200,277,896.68

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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.