Finding the Fourth Proportional to 5,328,781.42, 7,353,713.16 and 2,881,386.62
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Solution
The fourth proportional to 5,328,781.42, 7,353,713.16 and 2,881,386.62 is: 3,976,310.72
Step by Step Solution
- Step 1: Write the proportion equation
5,328,781.42 : 7,353,713.16 = 2,881,386.62 : x - Step 2: Convert to fraction form
5,328,781.42/7,353,713.16 = 2,881,386.62/x - Step 3: Cross multiply
5,328,781.42x = 7,353,713.16 × 2,881,386.62 - Step 4: Simplify right side
5,328,781.42x = 21,188,890,706,541.92 - Step 5: Solve for x
x = 21,188,890,706,541.92/5,328,781.42 - Step 6: Final answer
x = 3,976,310.72
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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.