Home / 621,695,992.86-858,015,704.22-353,836,955.04

Finding the Fourth Proportional to 621,695,992.86, 858,015,704.22 and 353,836,955.04

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Solution

The fourth proportional to 621,695,992.86, 858,015,704.22 and 353,836,955.04 is: 488,337,817.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,695,992.86 : 858,015,704.22 = 353,836,955.04 : x
  2. Step 2: Convert to fraction form
    621,695,992.86/858,015,704.22 = 353,836,955.04/x
  3. Step 3: Cross multiply
    621,695,992.86x = 858,015,704.22 × 353,836,955.04
  4. Step 4: Simplify right side
    621,695,992.86x = 303,597,664,157,706,112
  5. Step 5: Solve for x
    x = 303,597,664,157,706,112/621,695,992.86
  6. Step 6: Final answer
    x = 488,337,817.27

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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.