Finding the Fourth Proportional to 11,117,866.98, 15,343,532.42 and 8,191,066.38
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Solution
The fourth proportional to 11,117,866.98, 15,343,532.42 and 8,191,066.38 is: 11,304,316.99
Step by Step Solution
- Step 1: Write the proportion equation
11,117,866.98 : 15,343,532.42 = 8,191,066.38 : x - Step 2: Convert to fraction form
11,117,866.98/15,343,532.42 = 8,191,066.38/x - Step 3: Cross multiply
11,117,866.98x = 15,343,532.42 × 8,191,066.38 - Step 4: Simplify right side
11,117,866.98x = 125,679,892,555,902.03 - Step 5: Solve for x
x = 125,679,892,555,902.03/11,117,866.98 - Step 6: Final answer
x = 11,304,316.99
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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.