Finding the Fourth Proportional to 8,528,728.12, 12,788,407.13 and 4,201,256.54
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Solution
The fourth proportional to 8,528,728.12, 12,788,407.13 and 4,201,256.54 is: 6,299,576.95
Step by Step Solution
- Step 1: Write the proportion equation
8,528,728.12 : 12,788,407.13 = 4,201,256.54 : x - Step 2: Convert to fraction form
8,528,728.12/12,788,407.13 = 4,201,256.54/x - Step 3: Cross multiply
8,528,728.12x = 12,788,407.13 × 4,201,256.54 - Step 4: Simplify right side
8,528,728.12x = 53,727,379,091,095.13 - Step 5: Solve for x
x = 53,727,379,091,095.13/8,528,728.12 - Step 6: Final answer
x = 6,299,576.95
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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.