Finding the Fourth Proportional to 7,220,551.40, 10,828,202.70 and 3,625,123.40
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Solution
The fourth proportional to 7,220,551.40, 10,828,202.70 and 3,625,123.40 is: 5,436,367.50
Step by Step Solution
- Step 1: Write the proportion equation
7,220,551.40 : 10,828,202.70 = 3,625,123.40 : x - Step 2: Convert to fraction form
7,220,551.40/10,828,202.70 = 3,625,123.40/x - Step 3: Cross multiply
7,220,551.40x = 10,828,202.70 × 3,625,123.40 - Step 4: Simplify right side
7,220,551.40x = 39,253,570,987,713.18 - Step 5: Solve for x
x = 39,253,570,987,713.18/7,220,551.40 - Step 6: Final answer
x = 5,436,367.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.