Finding the Fourth Proportional to 38,478,476.70, 53,101,157.01 and 21,958,272.36
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Solution
The fourth proportional to 38,478,476.70, 53,101,157.01 and 21,958,272.36 is: 30,302,906.15
Step by Step Solution
- Step 1: Write the proportion equation
38,478,476.70 : 53,101,157.01 = 21,958,272.36 : x - Step 2: Convert to fraction form
38,478,476.70/53,101,157.01 = 21,958,272.36/x - Step 3: Cross multiply
38,478,476.70x = 53,101,157.01 × 21,958,272.36 - Step 4: Simplify right side
38,478,476.70x = 1,166,009,668,256,703.25 - Step 5: Solve for x
x = 1,166,009,668,256,703.25/38,478,476.70 - Step 6: Final answer
x = 30,302,906.15
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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.