Finding the Fourth Proportional to 38,850,568.12, 53,612,378.74 and 21,446,539.64
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Solution
The fourth proportional to 38,850,568.12, 53,612,378.74 and 21,446,539.64 is: 29,595,448.96
Step by Step Solution
- Step 1: Write the proportion equation
38,850,568.12 : 53,612,378.74 = 21,446,539.64 : x - Step 2: Convert to fraction form
38,850,568.12/53,612,378.74 = 21,446,539.64/x - Step 3: Cross multiply
38,850,568.12x = 53,612,378.74 × 21,446,539.64 - Step 4: Simplify right side
38,850,568.12x = 1,149,800,005,842,103.25 - Step 5: Solve for x
x = 1,149,800,005,842,103.25/38,850,568.12 - Step 6: Final answer
x = 29,595,448.96
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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.