Home / 53,590,408.92-80,390,408.46-20,800,209

Finding the Fourth Proportional to 53,590,408.92, 80,390,408.46 and 20,800,209

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Solution

The fourth proportional to 53,590,408.92, 80,390,408.46 and 20,800,209 is: 31,202,174.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,590,408.92 : 80,390,408.46 = 20,800,209 : x
  2. Step 2: Convert to fraction form
    53,590,408.92/80,390,408.46 = 20,800,209/x
  3. Step 3: Cross multiply
    53,590,408.92x = 80,390,408.46 × 20,800,209
  4. Step 4: Simplify right side
    53,590,408.92x = 1,672,137,297,563,368
  5. Step 5: Solve for x
    x = 1,672,137,297,563,368/53,590,408.92
  6. Step 6: Final answer
    x = 31,202,174.63

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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.