Home / 354,934,978.56-489,726,295.20-206,167,716

Finding the Fourth Proportional to 354,934,978.56, 489,726,295.20 and 206,167,716

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Solution

The fourth proportional to 354,934,978.56, 489,726,295.20 and 206,167,716 is: 284,462,670.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,934,978.56 : 489,726,295.20 = 206,167,716 : x
  2. Step 2: Convert to fraction form
    354,934,978.56/489,726,295.20 = 206,167,716/x
  3. Step 3: Cross multiply
    354,934,978.56x = 489,726,295.20 × 206,167,716
  4. Step 4: Simplify right side
    354,934,978.56x = 100,965,751,746,525,760
  5. Step 5: Solve for x
    x = 100,965,751,746,525,760/354,934,978.56
  6. Step 6: Final answer
    x = 284,462,670.19

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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.