Home / 206,495,999.90-309,743,999.85-144,686,131.10

Finding the Fourth Proportional to 206,495,999.90, 309,743,999.85 and 144,686,131.10

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Solution

The fourth proportional to 206,495,999.90, 309,743,999.85 and 144,686,131.10 is: 217,029,196.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,495,999.90 : 309,743,999.85 = 144,686,131.10 : x
  2. Step 2: Convert to fraction form
    206,495,999.90/309,743,999.85 = 144,686,131.10/x
  3. Step 3: Cross multiply
    206,495,999.90x = 309,743,999.85 × 144,686,131.10
  4. Step 4: Simplify right side
    206,495,999.90x = 44,815,660,969,735,480
  5. Step 5: Solve for x
    x = 44,815,660,969,735,480/206,495,999.90
  6. Step 6: Final answer
    x = 217,029,196.65

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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.