Finding the Fourth Proportional to 3,899,495.10, 5,381,202.54 and 2,157,119.09
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Solution
The fourth proportional to 3,899,495.10, 5,381,202.54 and 2,157,119.09 is: 2,976,768.63
Step by Step Solution
- Step 1: Write the proportion equation
3,899,495.10 : 5,381,202.54 = 2,157,119.09 : x - Step 2: Convert to fraction form
3,899,495.10/5,381,202.54 = 2,157,119.09/x - Step 3: Cross multiply
3,899,495.10x = 5,381,202.54 × 2,157,119.09 - Step 4: Simplify right side
3,899,495.10x = 11,607,894,699,284.48 - Step 5: Solve for x
x = 11,607,894,699,284.48/3,899,495.10 - Step 6: Final answer
x = 2,976,768.63
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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.