Finding the Fourth Proportional to 5,199,802.38, 7,175,702.79 and 2,907,972.18
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Solution
The fourth proportional to 5,199,802.38, 7,175,702.79 and 2,907,972.18 is: 4,012,987.91
Step by Step Solution
- Step 1: Write the proportion equation
5,199,802.38 : 7,175,702.79 = 2,907,972.18 : x - Step 2: Convert to fraction form
5,199,802.38/7,175,702.79 = 2,907,972.18/x - Step 3: Cross multiply
5,199,802.38x = 7,175,702.79 × 2,907,972.18 - Step 4: Simplify right side
5,199,802.38x = 20,866,744,085,268.38 - Step 5: Solve for x
x = 20,866,744,085,268.38/5,199,802.38 - Step 6: Final answer
x = 4,012,987.91
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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.