Finding the Fourth Proportional to 38,765,110.94, 53,496,211.84 and 21,362,078.96
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Solution
The fourth proportional to 38,765,110.94, 53,496,211.84 and 21,362,078.96 is: 29,479,866.66
Step by Step Solution
- Step 1: Write the proportion equation
38,765,110.94 : 53,496,211.84 = 21,362,078.96 : x - Step 2: Convert to fraction form
38,765,110.94/53,496,211.84 = 21,362,078.96/x - Step 3: Cross multiply
38,765,110.94x = 53,496,211.84 × 21,362,078.96 - Step 4: Simplify right side
38,765,110.94x = 1,142,790,301,386,967 - Step 5: Solve for x
x = 1,142,790,301,386,967/38,765,110.94 - Step 6: Final answer
x = 29,479,866.66
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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.