Finding the Fourth Proportional to 5,728,994.39, 7,906,068.25 and 3,115,554.62
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Solution
The fourth proportional to 5,728,994.39, 7,906,068.25 and 3,115,554.62 is: 4,299,495.82
Step by Step Solution
- Step 1: Write the proportion equation
5,728,994.39 : 7,906,068.25 = 3,115,554.62 : x - Step 2: Convert to fraction form
5,728,994.39/7,906,068.25 = 3,115,554.62/x - Step 3: Cross multiply
5,728,994.39x = 7,906,068.25 × 3,115,554.62 - Step 4: Simplify right side
5,728,994.39x = 24,631,787,415,003.59 - Step 5: Solve for x
x = 24,631,787,415,003.59/5,728,994.39 - Step 6: Final answer
x = 4,299,495.82
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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.