Home / 208,597,440.80-312,672,212.40-79,155,034.40

Finding the Fourth Proportional to 208,597,440.80, 312,672,212.40 and 79,155,034.40

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Solution

The fourth proportional to 208,597,440.80, 312,672,212.40 and 79,155,034.40 is: 118,647,571.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,597,440.80 : 312,672,212.40 = 79,155,034.40 : x
  2. Step 2: Convert to fraction form
    208,597,440.80/312,672,212.40 = 79,155,034.40/x
  3. Step 3: Cross multiply
    208,597,440.80x = 312,672,212.40 × 79,155,034.40
  4. Step 4: Simplify right side
    208,597,440.80x = 24,749,579,728,446,108
  5. Step 5: Solve for x
    x = 24,749,579,728,446,108/208,597,440.80
  6. Step 6: Final answer
    x = 118,647,571.29

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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.