Home / 256,770,561.90-354,313,481.78-143,746,242.77

Finding the Fourth Proportional to 256,770,561.90, 354,313,481.78 and 143,746,242.77

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Solution

The fourth proportional to 256,770,561.90, 354,313,481.78 and 143,746,242.77 is: 198,353,079.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,770,561.90 : 354,313,481.78 = 143,746,242.77 : x
  2. Step 2: Convert to fraction form
    256,770,561.90/354,313,481.78 = 143,746,242.77/x
  3. Step 3: Cross multiply
    256,770,561.90x = 354,313,481.78 × 143,746,242.77
  4. Step 4: Simplify right side
    256,770,561.90x = 50,931,231,769,877,008
  5. Step 5: Solve for x
    x = 50,931,231,769,877,008/256,770,561.90
  6. Step 6: Final answer
    x = 198,353,079.86

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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.