Home / 386,691,203.60-580,036,805.40-156,667,792.40

Finding the Fourth Proportional to 386,691,203.60, 580,036,805.40 and 156,667,792.40

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Solution

The fourth proportional to 386,691,203.60, 580,036,805.40 and 156,667,792.40 is: 235,001,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,691,203.60 : 580,036,805.40 = 156,667,792.40 : x
  2. Step 2: Convert to fraction form
    386,691,203.60/580,036,805.40 = 156,667,792.40/x
  3. Step 3: Cross multiply
    386,691,203.60x = 580,036,805.40 × 156,667,792.40
  4. Step 4: Simplify right side
    386,691,203.60x = 90,873,085,812,766,400
  5. Step 5: Solve for x
    x = 90,873,085,812,766,400/386,691,203.60
  6. Step 6: Final answer
    x = 235,001,688.60

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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.