Finding the Fourth Proportional to 7,874,412.98, 10,866,687.64 and 4,252,740.98
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Solution
The fourth proportional to 7,874,412.98, 10,866,687.64 and 4,252,740.98 is: 5,868,781.32
Step by Step Solution
- Step 1: Write the proportion equation
7,874,412.98 : 10,866,687.64 = 4,252,740.98 : x - Step 2: Convert to fraction form
7,874,412.98/10,866,687.64 = 4,252,740.98/x - Step 3: Cross multiply
7,874,412.98x = 10,866,687.64 × 4,252,740.98 - Step 4: Simplify right side
7,874,412.98x = 46,213,207,778,522.19 - Step 5: Solve for x
x = 46,213,207,778,522.19/7,874,412.98 - Step 6: Final answer
x = 5,868,781.32
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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.