Home / 309,115,247.80-463,672,871.70-165,788,015.80

Finding the Fourth Proportional to 309,115,247.80, 463,672,871.70 and 165,788,015.80

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Solution

The fourth proportional to 309,115,247.80, 463,672,871.70 and 165,788,015.80 is: 248,682,023.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,115,247.80 : 463,672,871.70 = 165,788,015.80 : x
  2. Step 2: Convert to fraction form
    309,115,247.80/463,672,871.70 = 165,788,015.80/x
  3. Step 3: Cross multiply
    309,115,247.80x = 463,672,871.70 × 165,788,015.80
  4. Step 4: Simplify right side
    309,115,247.80x = 76,871,405,379,430,976
  5. Step 5: Solve for x
    x = 76,871,405,379,430,976/309,115,247.80
  6. Step 6: Final answer
    x = 248,682,023.70

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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.