Finding the Fourth Proportional to 4,431,996.54, 6,119,001.81 and 2,780,408.09
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Solution
The fourth proportional to 4,431,996.54, 6,119,001.81 and 2,780,408.09 is: 3,838,748.96
Step by Step Solution
- Step 1: Write the proportion equation
4,431,996.54 : 6,119,001.81 = 2,780,408.09 : x - Step 2: Convert to fraction form
4,431,996.54/6,119,001.81 = 2,780,408.09/x - Step 3: Cross multiply
4,431,996.54x = 6,119,001.81 × 2,780,408.09 - Step 4: Simplify right side
4,431,996.54x = 17,013,322,090,751.59 - Step 5: Solve for x
x = 17,013,322,090,751.59/4,431,996.54 - Step 6: Final answer
x = 3,838,748.96
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1.5x scale
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.