Finding the Fourth Proportional to 7,137,805.49, 9,850,184.07 and 3,874,622.43
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Solution
The fourth proportional to 7,137,805.49, 9,850,184.07 and 3,874,622.43 is: 5,346,985.74
Step by Step Solution
- Step 1: Write the proportion equation
7,137,805.49 : 9,850,184.07 = 3,874,622.43 : x - Step 2: Convert to fraction form
7,137,805.49/9,850,184.07 = 3,874,622.43/x - Step 3: Cross multiply
7,137,805.49x = 9,850,184.07 × 3,874,622.43 - Step 4: Simplify right side
7,137,805.49x = 38,165,744,173,051.14 - Step 5: Solve for x
x = 38,165,744,173,051.14/7,137,805.49 - Step 6: Final answer
x = 5,346,985.74
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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.