Home / 206,495,999.40-309,743,999.10-144,686,130.60

Finding the Fourth Proportional to 206,495,999.40, 309,743,999.10 and 144,686,130.60

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Solution

The fourth proportional to 206,495,999.40, 309,743,999.10 and 144,686,130.60 is: 217,029,195.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,495,999.40 : 309,743,999.10 = 144,686,130.60 : x
  2. Step 2: Convert to fraction form
    206,495,999.40/309,743,999.10 = 144,686,130.60/x
  3. Step 3: Cross multiply
    206,495,999.40x = 309,743,999.10 × 144,686,130.60
  4. Step 4: Simplify right side
    206,495,999.40x = 44,815,660,706,348,888
  5. Step 5: Solve for x
    x = 44,815,660,706,348,888/206,495,999.40
  6. Step 6: Final answer
    x = 217,029,195.90

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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.