Finding the Fourth Proportional to 72,560,102.63, 100,132,942.84 and 39,965,054.63
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Solution
The fourth proportional to 72,560,102.63, 100,132,942.84 and 39,965,054.63 is: 55,151,776.05
Step by Step Solution
- Step 1: Write the proportion equation
72,560,102.63 : 100,132,942.84 = 39,965,054.63 : x - Step 2: Convert to fraction form
72,560,102.63/100,132,942.84 = 39,965,054.63/x - Step 3: Cross multiply
72,560,102.63x = 100,132,942.84 × 39,965,054.63 - Step 4: Simplify right side
72,560,102.63x = 4,001,818,530,262,690 - Step 5: Solve for x
x = 4,001,818,530,262,690/72,560,102.63 - Step 6: Final answer
x = 55,151,776.05
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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.