Finding the Fourth Proportional to 20,702,326.12, 31,053,485.06 and 5,556,257.62
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Solution
The fourth proportional to 20,702,326.12, 31,053,485.06 and 5,556,257.62 is: 8,334,385.33
Step by Step Solution
- Step 1: Write the proportion equation
20,702,326.12 : 31,053,485.06 = 5,556,257.62 : x - Step 2: Convert to fraction form
20,702,326.12/31,053,485.06 = 5,556,257.62/x - Step 3: Cross multiply
20,702,326.12x = 31,053,485.06 × 5,556,257.62 - Step 4: Simplify right side
20,702,326.12x = 172,541,163,082,277.97 - Step 5: Solve for x
x = 172,541,163,082,277.97/20,702,326.12 - Step 6: Final answer
x = 8,334,385.33
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1.5x scale
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.