Finding the Fourth Proportional to 11,081,326.70, 16,621,990.05 and 7,488,814.70
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Solution
The fourth proportional to 11,081,326.70, 16,621,990.05 and 7,488,814.70 is: 11,233,222.05
Step by Step Solution
- Step 1: Write the proportion equation
11,081,326.70 : 16,621,990.05 = 7,488,814.70 : x - Step 2: Convert to fraction form
11,081,326.70/16,621,990.05 = 7,488,814.70/x - Step 3: Cross multiply
11,081,326.70x = 16,621,990.05 × 7,488,814.70 - Step 4: Simplify right side
11,081,326.70x = 124,479,003,429,693.75 - Step 5: Solve for x
x = 124,479,003,429,693.75/11,081,326.70 - Step 6: Final answer
x = 11,233,222.05
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Double scale
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Similar ratio
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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.