Finding the Fourth Proportional to 3,894,138.68, 5,373,911.06 and 2,175,259.17
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Solution
The fourth proportional to 3,894,138.68, 5,373,911.06 and 2,175,259.17 is: 3,001,857.48
Step by Step Solution
- Step 1: Write the proportion equation
3,894,138.68 : 5,373,911.06 = 2,175,259.17 : x - Step 2: Convert to fraction form
3,894,138.68/5,373,911.06 = 2,175,259.17/x - Step 3: Cross multiply
3,894,138.68x = 5,373,911.06 × 2,175,259.17 - Step 4: Simplify right side
3,894,138.68x = 11,689,649,301,153.12 - Step 5: Solve for x
x = 11,689,649,301,153.12/3,894,138.68 - Step 6: Final answer
x = 3,001,857.48
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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.