Finding the Fourth Proportional to 5,478,661.60, 7,560,775.81 and 3,031,233.03
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Solution
The fourth proportional to 5,478,661.60, 7,560,775.81 and 3,031,233.03 is: 4,183,224.86
Step by Step Solution
- Step 1: Write the proportion equation
5,478,661.60 : 7,560,775.81 = 3,031,233.03 : x - Step 2: Convert to fraction form
5,478,661.60/7,560,775.81 = 3,031,233.03/x - Step 3: Cross multiply
5,478,661.60x = 7,560,775.81 × 3,031,233.03 - Step 4: Simplify right side
5,478,661.60x = 22,918,473,371,486.04 - Step 5: Solve for x
x = 22,918,473,371,486.04/5,478,661.60 - Step 6: Final answer
x = 4,183,224.86
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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.