Finding the Fourth Proportional to 16,314,940.80, 22,512,853.35 and 9,438,138
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Solution
The fourth proportional to 16,314,940.80, 22,512,853.35 and 9,438,138 is: 13,023,609.42
Step by Step Solution
- Step 1: Write the proportion equation
16,314,940.80 : 22,512,853.35 = 9,438,138 : x - Step 2: Convert to fraction form
16,314,940.80/22,512,853.35 = 9,438,138/x - Step 3: Cross multiply
16,314,940.80x = 22,512,853.35 × 9,438,138 - Step 4: Simplify right side
16,314,940.80x = 212,479,416,691,062.31 - Step 5: Solve for x
x = 212,479,416,691,062.31/16,314,940.80 - Step 6: Final answer
x = 13,023,609.42
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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.