Finding the Fourth Proportional to 5,111,962.63, 7,054,531.26 and 2,788,848.09
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Solution
The fourth proportional to 5,111,962.63, 7,054,531.26 and 2,788,848.09 is: 3,848,622.82
Step by Step Solution
- Step 1: Write the proportion equation
5,111,962.63 : 7,054,531.26 = 2,788,848.09 : x - Step 2: Convert to fraction form
5,111,962.63/7,054,531.26 = 2,788,848.09/x - Step 3: Cross multiply
5,111,962.63x = 7,054,531.26 × 2,788,848.09 - Step 4: Simplify right side
5,111,962.63x = 19,674,016,030,296.29 - Step 5: Solve for x
x = 19,674,016,030,296.29/5,111,962.63 - Step 6: Final answer
x = 3,848,622.82
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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.