Home / 139,969,231.20-209,953,846.80-127,214,647.20

Finding the Fourth Proportional to 139,969,231.20, 209,953,846.80 and 127,214,647.20

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Solution

The fourth proportional to 139,969,231.20, 209,953,846.80 and 127,214,647.20 is: 190,821,970.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,969,231.20 : 209,953,846.80 = 127,214,647.20 : x
  2. Step 2: Convert to fraction form
    139,969,231.20/209,953,846.80 = 127,214,647.20/x
  3. Step 3: Cross multiply
    139,969,231.20x = 209,953,846.80 × 127,214,647.20
  4. Step 4: Simplify right side
    139,969,231.20x = 26,709,204,548,944,852
  5. Step 5: Solve for x
    x = 26,709,204,548,944,852/139,969,231.20
  6. Step 6: Final answer
    x = 190,821,970.80

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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.