Home / 198,935,999.70-298,403,999.55-181,717,311.30

Finding the Fourth Proportional to 198,935,999.70, 298,403,999.55 and 181,717,311.30

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Solution

The fourth proportional to 198,935,999.70, 298,403,999.55 and 181,717,311.30 is: 272,575,966.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,935,999.70 : 298,403,999.55 = 181,717,311.30 : x
  2. Step 2: Convert to fraction form
    198,935,999.70/298,403,999.55 = 181,717,311.30/x
  3. Step 3: Cross multiply
    198,935,999.70x = 298,403,999.55 × 181,717,311.30
  4. Step 4: Simplify right side
    198,935,999.70x = 54,225,172,479,392,416
  5. Step 5: Solve for x
    x = 54,225,172,479,392,416/198,935,999.70
  6. Step 6: Final answer
    x = 272,575,966.95

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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.