Finding the Fourth Proportional to 18,147,534.80, 27,226,113.60 and 7,908,000.80
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Solution
The fourth proportional to 18,147,534.80, 27,226,113.60 and 7,908,000.80 is: 11,864,097.82
Step by Step Solution
- Step 1: Write the proportion equation
18,147,534.80 : 27,226,113.60 = 7,908,000.80 : x - Step 2: Convert to fraction form
18,147,534.80/27,226,113.60 = 7,908,000.80/x - Step 3: Cross multiply
18,147,534.80x = 27,226,113.60 × 7,908,000.80 - Step 4: Simplify right side
18,147,534.80x = 215,304,128,129,690.88 - Step 5: Solve for x
x = 215,304,128,129,690.88/18,147,534.80 - Step 6: Final answer
x = 11,864,097.82
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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.