Finding the Fourth Proportional to 186,233,788.12, 256,979,338.68 and 107,915,918.44
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Solution
The fourth proportional to 186,233,788.12, 256,979,338.68 and 107,915,918.44 is: 148,910,472.34
Step by Step Solution
- Step 1: Write the proportion equation
186,233,788.12 : 256,979,338.68 = 107,915,918.44 : x - Step 2: Convert to fraction form
186,233,788.12/256,979,338.68 = 107,915,918.44/x - Step 3: Cross multiply
186,233,788.12x = 256,979,338.68 × 107,915,918.44 - Step 4: Simplify right side
186,233,788.12x = 27,732,161,353,756,016 - Step 5: Solve for x
x = 27,732,161,353,756,016/186,233,788.12 - Step 6: Final answer
x = 148,910,472.34
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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.