Finding the Fourth Proportional to 5,486,638.88, 7,574,187.14 and 3,654,146.72
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Solution
The fourth proportional to 5,486,638.88, 7,574,187.14 and 3,654,146.72 is: 5,044,471.07
Step by Step Solution
- Step 1: Write the proportion equation
5,486,638.88 : 7,574,187.14 = 3,654,146.72 : x - Step 2: Convert to fraction form
5,486,638.88/7,574,187.14 = 3,654,146.72/x - Step 3: Cross multiply
5,486,638.88x = 7,574,187.14 × 3,654,146.72 - Step 4: Simplify right side
5,486,638.88x = 27,677,191,094,297.18 - Step 5: Solve for x
x = 27,677,191,094,297.18/5,486,638.88 - Step 6: Final answer
x = 5,044,471.07
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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.