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Finding the Fourth Proportional to 199,319,489.40, 298,979,234.10 and 199,319,489.40

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Solution

The fourth proportional to 199,319,489.40, 298,979,234.10 and 199,319,489.40 is: 298,979,234.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,319,489.40 : 298,979,234.10 = 199,319,489.40 : x
  2. Step 2: Convert to fraction form
    199,319,489.40/298,979,234.10 = 199,319,489.40/x
  3. Step 3: Cross multiply
    199,319,489.40x = 298,979,234.10 × 199,319,489.40
  4. Step 4: Simplify right side
    199,319,489.40x = 59,592,388,282,015,072
  5. Step 5: Solve for x
    x = 59,592,388,282,015,072/199,319,489.40
  6. Step 6: Final answer
    x = 298,979,234.10

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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.