Home / 208,226,812.80-312,340,219.20-106,190,140.80

Finding the Fourth Proportional to 208,226,812.80, 312,340,219.20 and 106,190,140.80

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Solution

The fourth proportional to 208,226,812.80, 312,340,219.20 and 106,190,140.80 is: 159,285,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,226,812.80 : 312,340,219.20 = 106,190,140.80 : x
  2. Step 2: Convert to fraction form
    208,226,812.80/312,340,219.20 = 106,190,140.80/x
  3. Step 3: Cross multiply
    208,226,812.80x = 312,340,219.20 × 106,190,140.80
  4. Step 4: Simplify right side
    208,226,812.80x = 33,167,451,854,350,860
  5. Step 5: Solve for x
    x = 33,167,451,854,350,860/208,226,812.80
  6. Step 6: Final answer
    x = 159,285,211.20

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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.