Finding the Fourth Proportional to 10,850,531.08, 14,986,160.36 and 7,145,922.55
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Solution
The fourth proportional to 10,850,531.08, 14,986,160.36 and 7,145,922.55 is: 9,869,557.57
Step by Step Solution
- Step 1: Write the proportion equation
10,850,531.08 : 14,986,160.36 = 7,145,922.55 : x - Step 2: Convert to fraction form
10,850,531.08/14,986,160.36 = 7,145,922.55/x - Step 3: Cross multiply
10,850,531.08x = 14,986,160.36 × 7,145,922.55 - Step 4: Simplify right side
10,850,531.08x = 107,089,941,189,450.16 - Step 5: Solve for x
x = 107,089,941,189,450.16/10,850,531.08 - Step 6: Final answer
x = 9,869,557.57
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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.