Finding the Fourth Proportional to 5,230,684.80, 7,218,351.36 and 2,938,844.16
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Solution
The fourth proportional to 5,230,684.80, 7,218,351.36 and 2,938,844.16 is: 4,055,608.50
Step by Step Solution
- Step 1: Write the proportion equation
5,230,684.80 : 7,218,351.36 = 2,938,844.16 : x - Step 2: Convert to fraction form
5,230,684.80/7,218,351.36 = 2,938,844.16/x - Step 3: Cross multiply
5,230,684.80x = 7,218,351.36 × 2,938,844.16 - Step 4: Simplify right side
5,230,684.80x = 21,213,609,739,164.06 - Step 5: Solve for x
x = 21,213,609,739,164.06/5,230,684.80 - Step 6: Final answer
x = 4,055,608.50
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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.