Finding the Fourth Proportional to 5,221,145.62, 7,205,069.48 and 2,897,902.81
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Solution
The fourth proportional to 5,221,145.62, 7,205,069.48 and 2,897,902.81 is: 3,999,044.00
Step by Step Solution
- Step 1: Write the proportion equation
5,221,145.62 : 7,205,069.48 = 2,897,902.81 : x - Step 2: Convert to fraction form
5,221,145.62/7,205,069.48 = 2,897,902.81/x - Step 3: Cross multiply
5,221,145.62x = 7,205,069.48 × 2,897,902.81 - Step 4: Simplify right side
5,221,145.62x = 20,879,591,086,854.06 - Step 5: Solve for x
x = 20,879,591,086,854.06/5,221,145.62 - Step 6: Final answer
x = 3,999,044.00
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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.