Home / 155,440,323.14-214,417,722.31-100,436,179.64

Finding the Fourth Proportional to 155,440,323.14, 214,417,722.31 and 100,436,179.64

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Solution

The fourth proportional to 155,440,323.14, 214,417,722.31 and 100,436,179.64 is: 138,543,824.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,440,323.14 : 214,417,722.31 = 100,436,179.64 : x
  2. Step 2: Convert to fraction form
    155,440,323.14/214,417,722.31 = 100,436,179.64/x
  3. Step 3: Cross multiply
    155,440,323.14x = 214,417,722.31 × 100,436,179.64
  4. Step 4: Simplify right side
    155,440,323.14x = 21,535,296,874,603,620
  5. Step 5: Solve for x
    x = 21,535,296,874,603,620/155,440,323.14
  6. Step 6: Final answer
    x = 138,543,824.67

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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.