Home / 208,415,736.26-312,229,003.96-139,119,591.50

Finding the Fourth Proportional to 208,415,736.26, 312,229,003.96 and 139,119,591.50

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Solution

The fourth proportional to 208,415,736.26, 312,229,003.96 and 139,119,591.50 is: 208,415,987.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,415,736.26 : 312,229,003.96 = 139,119,591.50 : x
  2. Step 2: Convert to fraction form
    208,415,736.26/312,229,003.96 = 139,119,591.50/x
  3. Step 3: Cross multiply
    208,415,736.26x = 312,229,003.96 × 139,119,591.50
  4. Step 4: Simplify right side
    208,415,736.26x = 43,437,171,485,367,080
  5. Step 5: Solve for x
    x = 43,437,171,485,367,080/208,415,736.26
  6. Step 6: Final answer
    x = 208,415,987.51

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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.