Home / 28,821,761.64-39,770,102.88-17,216,861.67

Finding the Fourth Proportional to 28,821,761.64, 39,770,102.88 and 17,216,861.67

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Solution

The fourth proportional to 28,821,761.64, 39,770,102.88 and 17,216,861.67 is: 23,756,922.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,821,761.64 : 39,770,102.88 = 17,216,861.67 : x
  2. Step 2: Convert to fraction form
    28,821,761.64/39,770,102.88 = 17,216,861.67/x
  3. Step 3: Cross multiply
    28,821,761.64x = 39,770,102.88 × 17,216,861.67
  4. Step 4: Simplify right side
    28,821,761.64x = 684,716,359,886,628.75
  5. Step 5: Solve for x
    x = 684,716,359,886,628.75/28,821,761.64
  6. Step 6: Final answer
    x = 23,756,922.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.