Finding the Fourth Proportional to 5,229,909.36, 7,217,231.40 and 2,938,020.48
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Solution
The fourth proportional to 5,229,909.36, 7,217,231.40 and 2,938,020.48 is: 4,054,443.82
Step by Step Solution
- Step 1: Write the proportion equation
5,229,909.36 : 7,217,231.40 = 2,938,020.48 : x - Step 2: Convert to fraction form
5,229,909.36/7,217,231.40 = 2,938,020.48/x - Step 3: Cross multiply
5,229,909.36x = 7,217,231.40 × 2,938,020.48 - Step 4: Simplify right side
5,229,909.36x = 21,204,373,662,099.07 - Step 5: Solve for x
x = 21,204,373,662,099.07/5,229,909.36 - Step 6: Final answer
x = 4,054,443.82
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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.