Finding the Fourth Proportional to 38,457,450.82, 53,062,798.09 and 22,768,685.25
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Solution
The fourth proportional to 38,457,450.82, 53,062,798.09 and 22,768,685.25 is: 31,415,762.68
Step by Step Solution
- Step 1: Write the proportion equation
38,457,450.82 : 53,062,798.09 = 22,768,685.25 : x - Step 2: Convert to fraction form
38,457,450.82/53,062,798.09 = 22,768,685.25/x - Step 3: Cross multiply
38,457,450.82x = 53,062,798.09 × 22,768,685.25 - Step 4: Simplify right side
38,457,450.82x = 1,208,170,148,195,511.25 - Step 5: Solve for x
x = 1,208,170,148,195,511.25/38,457,450.82 - Step 6: Final answer
x = 31,415,762.68
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Double scale
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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.