Finding the Fourth Proportional to 5,220,988.66, 7,204,855.73 and 2,897,744.84
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Solution
The fourth proportional to 5,220,988.66, 7,204,855.73 and 2,897,744.84 is: 3,998,827.58
Step by Step Solution
- Step 1: Write the proportion equation
5,220,988.66 : 7,204,855.73 = 2,897,744.84 : x - Step 2: Convert to fraction form
5,220,988.66/7,204,855.73 = 2,897,744.84/x - Step 3: Cross multiply
5,220,988.66x = 7,204,855.73 × 2,897,744.84 - Step 4: Simplify right side
5,220,988.66x = 20,877,833,464,038.93 - Step 5: Solve for x
x = 20,877,833,464,038.93/5,220,988.66 - Step 6: Final answer
x = 3,998,827.58
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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.