Home / 129,489,329.90-194,202,890.85-74,783,614.70

Finding the Fourth Proportional to 129,489,329.90, 194,202,890.85 and 74,783,614.70

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Solution

The fourth proportional to 129,489,329.90, 194,202,890.85 and 74,783,614.70 is: 112,157,458.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,489,329.90 : 194,202,890.85 = 74,783,614.70 : x
  2. Step 2: Convert to fraction form
    129,489,329.90/194,202,890.85 = 74,783,614.70/x
  3. Step 3: Cross multiply
    129,489,329.90x = 194,202,890.85 × 74,783,614.70
  4. Step 4: Simplify right side
    129,489,329.90x = 14,523,194,162,952,556
  5. Step 5: Solve for x
    x = 14,523,194,162,952,556/129,489,329.90
  6. Step 6: Final answer
    x = 112,157,458.64

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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.