Finding the Fourth Proportional to 15,178,548.30, 20,946,562.84 and 8,303,030.43
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Solution
The fourth proportional to 15,178,548.30, 20,946,562.84 and 8,303,030.43 is: 11,458,272.90
Step by Step Solution
- Step 1: Write the proportion equation
15,178,548.30 : 20,946,562.84 = 8,303,030.43 : x - Step 2: Convert to fraction form
15,178,548.30/20,946,562.84 = 8,303,030.43/x - Step 3: Cross multiply
15,178,548.30x = 20,946,562.84 × 8,303,030.43 - Step 4: Simplify right side
15,178,548.30x = 173,919,948,664,427.22 - Step 5: Solve for x
x = 173,919,948,664,427.22/15,178,548.30 - Step 6: Final answer
x = 11,458,272.90
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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.