Home / 198,904,406.76-298,354,510.62-77,734,809

Finding the Fourth Proportional to 198,904,406.76, 298,354,510.62 and 77,734,809

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Solution

The fourth proportional to 198,904,406.76, 298,354,510.62 and 77,734,809 is: 116,601,392.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,904,406.76 : 298,354,510.62 = 77,734,809 : x
  2. Step 2: Convert to fraction form
    198,904,406.76/298,354,510.62 = 77,734,809/x
  3. Step 3: Cross multiply
    198,904,406.76x = 298,354,510.62 × 77,734,809
  4. Step 4: Simplify right side
    198,904,406.76x = 23,192,530,897,334,172
  5. Step 5: Solve for x
    x = 23,192,530,897,334,172/198,904,406.76
  6. Step 6: Final answer
    x = 116,601,392.98

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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.