Finding the Fourth Proportional to 73,275,721.51, 101,115,896.52 and 40,235,739.30
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Solution
The fourth proportional to 73,275,721.51, 101,115,896.52 and 40,235,739.30 is: 55,522,794.82
Step by Step Solution
- Step 1: Write the proportion equation
73,275,721.51 : 101,115,896.52 = 40,235,739.30 : x - Step 2: Convert to fraction form
73,275,721.51/101,115,896.52 = 40,235,739.30/x - Step 3: Cross multiply
73,275,721.51x = 101,115,896.52 × 40,235,739.30 - Step 4: Simplify right side
73,275,721.51x = 4,068,472,850,958,918 - Step 5: Solve for x
x = 4,068,472,850,958,918/73,275,721.51 - Step 6: Final answer
x = 55,522,794.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.