Home / 394,416,010.80-591,624,016.20-213,017,482.80

Finding the Fourth Proportional to 394,416,010.80, 591,624,016.20 and 213,017,482.80

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Solution

The fourth proportional to 394,416,010.80, 591,624,016.20 and 213,017,482.80 is: 319,526,224.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,416,010.80 : 591,624,016.20 = 213,017,482.80 : x
  2. Step 2: Convert to fraction form
    394,416,010.80/591,624,016.20 = 213,017,482.80/x
  3. Step 3: Cross multiply
    394,416,010.80x = 591,624,016.20 × 213,017,482.80
  4. Step 4: Simplify right side
    394,416,010.80x = 126,026,258,694,950,432
  5. Step 5: Solve for x
    x = 126,026,258,694,950,432/394,416,010.80
  6. Step 6: Final answer
    x = 319,526,224.20

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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.