Finding the Fourth Proportional to 5,230,460.36, 7,218,220.02 and 2,938,575.08
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Solution
The fourth proportional to 5,230,460.36, 7,218,220.02 and 2,938,575.08 is: 4,055,337.39
Step by Step Solution
- Step 1: Write the proportion equation
5,230,460.36 : 7,218,220.02 = 2,938,575.08 : x - Step 2: Convert to fraction form
5,230,460.36/7,218,220.02 = 2,938,575.08/x - Step 3: Cross multiply
5,230,460.36x = 7,218,220.02 × 2,938,575.08 - Step 4: Simplify right side
5,230,460.36x = 21,211,281,472,729.10 - Step 5: Solve for x
x = 21,211,281,472,729.10/5,230,460.36 - Step 6: Final answer
x = 4,055,337.39
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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.