Home / 209,065,817.16-313,598,163.60-77,905,106.73

Finding the Fourth Proportional to 209,065,817.16, 313,598,163.60 and 77,905,106.73

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Solution

The fourth proportional to 209,065,817.16, 313,598,163.60 and 77,905,106.73 is: 116,857,450.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,065,817.16 : 313,598,163.60 = 77,905,106.73 : x
  2. Step 2: Convert to fraction form
    209,065,817.16/313,598,163.60 = 77,905,106.73/x
  3. Step 3: Cross multiply
    209,065,817.16x = 313,598,163.60 × 77,905,106.73
  4. Step 4: Simplify right side
    209,065,817.16x = 24,430,898,405,590,004
  5. Step 5: Solve for x
    x = 24,430,898,405,590,004/209,065,817.16
  6. Step 6: Final answer
    x = 116,857,450.62

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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.