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Finding the Fourth Proportional to 336,302,912.40, 504,454,368.60 and 206,489,590.80

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Solution

The fourth proportional to 336,302,912.40, 504,454,368.60 and 206,489,590.80 is: 309,734,386.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,302,912.40 : 504,454,368.60 = 206,489,590.80 : x
  2. Step 2: Convert to fraction form
    336,302,912.40/504,454,368.60 = 206,489,590.80/x
  3. Step 3: Cross multiply
    336,302,912.40x = 504,454,368.60 × 206,489,590.80
  4. Step 4: Simplify right side
    336,302,912.40x = 104,164,576,149,486,384
  5. Step 5: Solve for x
    x = 104,164,576,149,486,384/336,302,912.40
  6. Step 6: Final answer
    x = 309,734,386.20

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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.