Home / 206,103,463.20-309,155,194.80-172,343,181.60

Finding the Fourth Proportional to 206,103,463.20, 309,155,194.80 and 172,343,181.60

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Solution

The fourth proportional to 206,103,463.20, 309,155,194.80 and 172,343,181.60 is: 258,514,772.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,103,463.20 : 309,155,194.80 = 172,343,181.60 : x
  2. Step 2: Convert to fraction form
    206,103,463.20/309,155,194.80 = 172,343,181.60/x
  3. Step 3: Cross multiply
    206,103,463.20x = 309,155,194.80 × 172,343,181.60
  4. Step 4: Simplify right side
    206,103,463.20x = 53,280,789,879,999,776
  5. Step 5: Solve for x
    x = 53,280,789,879,999,776/206,103,463.20
  6. Step 6: Final answer
    x = 258,514,772.40

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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.