Home / 262,724,891.40-394,050,012.30-80,990,440.20

Finding the Fourth Proportional to 262,724,891.40, 394,050,012.30 and 80,990,440.20

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Solution

The fourth proportional to 262,724,891.40, 394,050,012.30 and 80,990,440.20 is: 121,474,154.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,724,891.40 : 394,050,012.30 = 80,990,440.20 : x
  2. Step 2: Convert to fraction form
    262,724,891.40/394,050,012.30 = 80,990,440.20/x
  3. Step 3: Cross multiply
    262,724,891.40x = 394,050,012.30 × 80,990,440.20
  4. Step 4: Simplify right side
    262,724,891.40x = 31,914,283,956,992,416
  5. Step 5: Solve for x
    x = 31,914,283,956,992,416/262,724,891.40
  6. Step 6: Final answer
    x = 121,474,154.15

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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.