Home / 106,876,979.20-160,189,497.60-79,919,142.40

Finding the Fourth Proportional to 106,876,979.20, 160,189,497.60 and 79,919,142.40

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Solution

The fourth proportional to 106,876,979.20, 160,189,497.60 and 79,919,142.40 is: 119,784,516.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,876,979.20 : 160,189,497.60 = 79,919,142.40 : x
  2. Step 2: Convert to fraction form
    106,876,979.20/160,189,497.60 = 79,919,142.40/x
  3. Step 3: Cross multiply
    106,876,979.20x = 160,189,497.60 × 79,919,142.40
  4. Step 4: Simplify right side
    106,876,979.20x = 12,802,207,269,678,858
  5. Step 5: Solve for x
    x = 12,802,207,269,678,858/106,876,979.20
  6. Step 6: Final answer
    x = 119,784,516.42

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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.