Home / 139,969,211.85-209,953,817.78-49,080,991.05

Finding the Fourth Proportional to 139,969,211.85, 209,953,817.78 and 49,080,991.05

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Solution

The fourth proportional to 139,969,211.85, 209,953,817.78 and 49,080,991.05 is: 73,621,486.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,969,211.85 : 209,953,817.78 = 49,080,991.05 : x
  2. Step 2: Convert to fraction form
    139,969,211.85/209,953,817.78 = 49,080,991.05/x
  3. Step 3: Cross multiply
    139,969,211.85x = 209,953,817.78 × 49,080,991.05
  4. Step 4: Simplify right side
    139,969,211.85x = 10,304,741,451,128,106
  5. Step 5: Solve for x
    x = 10,304,741,451,128,106/139,969,211.85
  6. Step 6: Final answer
    x = 73,621,486.58

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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.