Finding the Fourth Proportional to 15,255,429.68, 21,052,647.60 and 8,286,242.96
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Solution
The fourth proportional to 15,255,429.68, 21,052,647.60 and 8,286,242.96 is: 11,435,099.28
Step by Step Solution
- Step 1: Write the proportion equation
15,255,429.68 : 21,052,647.60 = 8,286,242.96 : x - Step 2: Convert to fraction form
15,255,429.68/21,052,647.60 = 8,286,242.96/x - Step 3: Cross multiply
15,255,429.68x = 21,052,647.60 × 8,286,242.96 - Step 4: Simplify right side
15,255,429.68x = 174,447,352,964,860.91 - Step 5: Solve for x
x = 174,447,352,964,860.91/15,255,429.68 - Step 6: Final answer
x = 11,435,099.28
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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.