Home / 402,409,344.30-603,614,016.45-279,327,608.70

Finding the Fourth Proportional to 402,409,344.30, 603,614,016.45 and 279,327,608.70

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Solution

The fourth proportional to 402,409,344.30, 603,614,016.45 and 279,327,608.70 is: 418,991,413.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,409,344.30 : 603,614,016.45 = 279,327,608.70 : x
  2. Step 2: Convert to fraction form
    402,409,344.30/603,614,016.45 = 279,327,608.70/x
  3. Step 3: Cross multiply
    402,409,344.30x = 603,614,016.45 × 279,327,608.70
  4. Step 4: Simplify right side
    402,409,344.30x = 168,606,059,792,780,960
  5. Step 5: Solve for x
    x = 168,606,059,792,780,960/402,409,344.30
  6. Step 6: Final answer
    x = 418,991,413.05

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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.