Finding the Fourth Proportional to 7,486,431.37, 10,331,306.42 and 4,048,672.40
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Solution
The fourth proportional to 7,486,431.37, 10,331,306.42 and 4,048,672.40 is: 5,587,184.75
Step by Step Solution
- Step 1: Write the proportion equation
7,486,431.37 : 10,331,306.42 = 4,048,672.40 : x - Step 2: Convert to fraction form
7,486,431.37/10,331,306.42 = 4,048,672.40/x - Step 3: Cross multiply
7,486,431.37x = 10,331,306.42 × 4,048,672.40 - Step 4: Simplify right side
7,486,431.37x = 41,828,075,158,596.80 - Step 5: Solve for x
x = 41,828,075,158,596.80/7,486,431.37 - Step 6: Final answer
x = 5,587,184.75
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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.