Home / 354,934,922.83-489,810,400.99-198,302,029.61

Finding the Fourth Proportional to 354,934,922.83, 489,810,400.99 and 198,302,029.61

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Solution

The fourth proportional to 354,934,922.83, 489,810,400.99 and 198,302,029.61 is: 273,656,916.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,934,922.83 : 489,810,400.99 = 198,302,029.61 : x
  2. Step 2: Convert to fraction form
    354,934,922.83/489,810,400.99 = 198,302,029.61/x
  3. Step 3: Cross multiply
    354,934,922.83x = 489,810,400.99 × 198,302,029.61
  4. Step 4: Simplify right side
    354,934,922.83x = 97,130,396,637,460,144
  5. Step 5: Solve for x
    x = 97,130,396,637,460,144/354,934,922.83
  6. Step 6: Final answer
    x = 273,656,916.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.