Home / 38,569,640.40-53,226,750.60-21,167,604.90

Finding the Fourth Proportional to 38,569,640.40, 53,226,750.60 and 21,167,604.90

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Solution

The fourth proportional to 38,569,640.40, 53,226,750.60 and 21,167,604.90 is: 29,211,649.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,569,640.40 : 53,226,750.60 = 21,167,604.90 : x
  2. Step 2: Convert to fraction form
    38,569,640.40/53,226,750.60 = 21,167,604.90/x
  3. Step 3: Cross multiply
    38,569,640.40x = 53,226,750.60 × 21,167,604.90
  4. Step 4: Simplify right side
    38,569,640.40x = 1,126,682,826,811,638
  5. Step 5: Solve for x
    x = 1,126,682,826,811,638/38,569,640.40
  6. Step 6: Final answer
    x = 29,211,649.76

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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.