Home / 426,404,181.60-640,084,569.30-329,788,207.80

Finding the Fourth Proportional to 426,404,181.60, 640,084,569.30 and 329,788,207.80

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Solution

The fourth proportional to 426,404,181.60, 640,084,569.30 and 329,788,207.80 is: 495,052,234.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,404,181.60 : 640,084,569.30 = 329,788,207.80 : x
  2. Step 2: Convert to fraction form
    426,404,181.60/640,084,569.30 = 329,788,207.80/x
  3. Step 3: Cross multiply
    426,404,181.60x = 640,084,569.30 × 329,788,207.80
  4. Step 4: Simplify right side
    426,404,181.60x = 211,092,342,949,881,888
  5. Step 5: Solve for x
    x = 211,092,342,949,881,888/426,404,181.60
  6. Step 6: Final answer
    x = 495,052,234.61

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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.