Home / 139,969,231.80-209,953,847.70-101,422,044.60

Finding the Fourth Proportional to 139,969,231.80, 209,953,847.70 and 101,422,044.60

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Solution

The fourth proportional to 139,969,231.80, 209,953,847.70 and 101,422,044.60 is: 152,133,066.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,969,231.80 : 209,953,847.70 = 101,422,044.60 : x
  2. Step 2: Convert to fraction form
    139,969,231.80/209,953,847.70 = 101,422,044.60/x
  3. Step 3: Cross multiply
    139,969,231.80x = 209,953,847.70 × 101,422,044.60
  4. Step 4: Simplify right side
    139,969,231.80x = 21,293,948,505,371,004
  5. Step 5: Solve for x
    x = 21,293,948,505,371,004/139,969,231.80
  6. Step 6: Final answer
    x = 152,133,066.90

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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.