Home / 354,893,894.78-531,864,997.55-276,205,418.06

Finding the Fourth Proportional to 354,893,894.78, 531,864,997.55 and 276,205,418.06

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Solution

The fourth proportional to 354,893,894.78, 531,864,997.55 and 276,205,418.06 is: 413,937,788.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,893,894.78 : 531,864,997.55 = 276,205,418.06 : x
  2. Step 2: Convert to fraction form
    354,893,894.78/531,864,997.55 = 276,205,418.06/x
  3. Step 3: Cross multiply
    354,893,894.78x = 531,864,997.55 × 276,205,418.06
  4. Step 4: Simplify right side
    354,893,894.78x = 146,903,993,999,778,624
  5. Step 5: Solve for x
    x = 146,903,993,999,778,624/354,893,894.78
  6. Step 6: Final answer
    x = 413,937,788.62

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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.