Finding the Fourth Proportional to 12,190,815.09, 16,824,080.70 and 6,758,307.09
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Solution
The fourth proportional to 12,190,815.09, 16,824,080.70 and 6,758,307.09 is: 9,326,882.82
Step by Step Solution
- Step 1: Write the proportion equation
12,190,815.09 : 16,824,080.70 = 6,758,307.09 : x - Step 2: Convert to fraction form
12,190,815.09/16,824,080.70 = 6,758,307.09/x - Step 3: Cross multiply
12,190,815.09x = 16,824,080.70 × 6,758,307.09 - Step 4: Simplify right side
12,190,815.09x = 113,702,303,877,542.16 - Step 5: Solve for x
x = 113,702,303,877,542.16/12,190,815.09 - Step 6: Final answer
x = 9,326,882.82
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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.