Home / 439,824,411.21-659,416,745.30-206,534,911.40

Finding the Fourth Proportional to 439,824,411.21, 659,416,745.30 and 206,534,911.40

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Solution

The fourth proportional to 439,824,411.21, 659,416,745.30 and 206,534,911.40 is: 309,652,160.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,824,411.21 : 659,416,745.30 = 206,534,911.40 : x
  2. Step 2: Convert to fraction form
    439,824,411.21/659,416,745.30 = 206,534,911.40/x
  3. Step 3: Cross multiply
    439,824,411.21x = 659,416,745.30 × 206,534,911.40
  4. Step 4: Simplify right side
    439,824,411.21x = 136,192,579,061,882,112
  5. Step 5: Solve for x
    x = 136,192,579,061,882,112/439,824,411.21
  6. Step 6: Final answer
    x = 309,652,160.25

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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.