Finding the Fourth Proportional to 5,419,354.12, 7,478,719.06 and 2,971,982.44
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Solution
The fourth proportional to 5,419,354.12, 7,478,719.06 and 2,971,982.44 is: 4,101,341.46
Step by Step Solution
- Step 1: Write the proportion equation
5,419,354.12 : 7,478,719.06 = 2,971,982.44 : x - Step 2: Convert to fraction form
5,419,354.12/7,478,719.06 = 2,971,982.44/x - Step 3: Cross multiply
5,419,354.12x = 7,478,719.06 × 2,971,982.44 - Step 4: Simplify right side
5,419,354.12x = 22,226,621,720,013.30 - Step 5: Solve for x
x = 22,226,621,720,013.30/5,419,354.12 - Step 6: Final answer
x = 4,101,341.46
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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.