Finding the Fourth Proportional to 5,212,802.16, 7,193,861.64 and 2,920,878
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Solution
The fourth proportional to 5,212,802.16, 7,193,861.64 and 2,920,878 is: 4,030,920.71
Step by Step Solution
- Step 1: Write the proportion equation
5,212,802.16 : 7,193,861.64 = 2,920,878 : x - Step 2: Convert to fraction form
5,212,802.16/7,193,861.64 = 2,920,878/x - Step 3: Cross multiply
5,212,802.16x = 7,193,861.64 × 2,920,878 - Step 4: Simplify right side
5,212,802.16x = 21,012,392,199,319.92 - Step 5: Solve for x
x = 21,012,392,199,319.92/5,212,802.16 - Step 6: Final answer
x = 4,030,920.71
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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.