Finding the Fourth Proportional to 5,438,956.74, 7,505,775.30 and 2,991,818.58
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Solution
The fourth proportional to 5,438,956.74, 7,505,775.30 and 2,991,818.58 is: 4,128,717.89
Step by Step Solution
- Step 1: Write the proportion equation
5,438,956.74 : 7,505,775.30 = 2,991,818.58 : x - Step 2: Convert to fraction form
5,438,956.74/7,505,775.30 = 2,991,818.58/x - Step 3: Cross multiply
5,438,956.74x = 7,505,775.30 × 2,991,818.58 - Step 4: Simplify right side
5,438,956.74x = 22,455,917,999,845.07 - Step 5: Solve for x
x = 22,455,917,999,845.07/5,438,956.74 - Step 6: Final answer
x = 4,128,717.89
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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.