Home / 139,968,358.45-209,952,537.69-131,010,406.45

Finding the Fourth Proportional to 139,968,358.45, 209,952,537.69 and 131,010,406.45

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Solution

The fourth proportional to 139,968,358.45, 209,952,537.69 and 131,010,406.45 is: 196,515,609.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,358.45 : 209,952,537.69 = 131,010,406.45 : x
  2. Step 2: Convert to fraction form
    139,968,358.45/209,952,537.69 = 131,010,406.45/x
  3. Step 3: Cross multiply
    139,968,358.45x = 209,952,537.69 × 131,010,406.45
  4. Step 4: Simplify right side
    139,968,358.45x = 27,505,967,297,975,844
  5. Step 5: Solve for x
    x = 27,505,967,297,975,844/139,968,358.45
  6. Step 6: Final answer
    x = 196,515,609.69

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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.