Home / 298,186,405.96-447,262,786.04-132,142,087.28

Finding the Fourth Proportional to 298,186,405.96, 447,262,786.04 and 132,142,087.28

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Solution

The fourth proportional to 298,186,405.96, 447,262,786.04 and 132,142,087.28 is: 198,205,675.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,186,405.96 : 447,262,786.04 = 132,142,087.28 : x
  2. Step 2: Convert to fraction form
    298,186,405.96/447,262,786.04 = 132,142,087.28/x
  3. Step 3: Cross multiply
    298,186,405.96x = 447,262,786.04 × 132,142,087.28
  4. Step 4: Simplify right side
    298,186,405.96x = 59,102,238,109,993,648
  5. Step 5: Solve for x
    x = 59,102,238,109,993,648/298,186,405.96
  6. Step 6: Final answer
    x = 198,205,675.81

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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.