Home / 139,523,222.08-209,144,146.23-87,744,828.85

Finding the Fourth Proportional to 139,523,222.08, 209,144,146.23 and 87,744,828.85

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Solution

The fourth proportional to 139,523,222.08, 209,144,146.23 and 87,744,828.85 is: 131,528,766.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,523,222.08 : 209,144,146.23 = 87,744,828.85 : x
  2. Step 2: Convert to fraction form
    139,523,222.08/209,144,146.23 = 87,744,828.85/x
  3. Step 3: Cross multiply
    139,523,222.08x = 209,144,146.23 × 87,744,828.85
  4. Step 4: Simplify right side
    139,523,222.08x = 18,351,317,315,930,720
  5. Step 5: Solve for x
    x = 18,351,317,315,930,720/139,523,222.08
  6. Step 6: Final answer
    x = 131,528,766.63

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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.