Finding the Fourth Proportional to 5,212,221.03, 7,192,860.21 and 2,920,398.12
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Solution
The fourth proportional to 5,212,221.03, 7,192,860.21 and 2,920,398.12 is: 4,030,146.71
Step by Step Solution
- Step 1: Write the proportion equation
5,212,221.03 : 7,192,860.21 = 2,920,398.12 : x - Step 2: Convert to fraction form
5,212,221.03/7,192,860.21 = 2,920,398.12/x - Step 3: Cross multiply
5,212,221.03x = 7,192,860.21 × 2,920,398.12 - Step 4: Simplify right side
5,212,221.03x = 21,006,015,434,706.80 - Step 5: Solve for x
x = 21,006,015,434,706.80/5,212,221.03 - Step 6: Final answer
x = 4,030,146.71
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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.