Finding the Fourth Proportional to 18,387,825.60, 27,581,738.40 and 16,403,779.20
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Solution
The fourth proportional to 18,387,825.60, 27,581,738.40 and 16,403,779.20 is: 24,605,668.80
Step by Step Solution
- Step 1: Write the proportion equation
18,387,825.60 : 27,581,738.40 = 16,403,779.20 : x - Step 2: Convert to fraction form
18,387,825.60/27,581,738.40 = 16,403,779.20/x - Step 3: Cross multiply
18,387,825.60x = 27,581,738.40 × 16,403,779.20 - Step 4: Simplify right side
18,387,825.60x = 452,444,746,665,761.25 - Step 5: Solve for x
x = 452,444,746,665,761.25/18,387,825.60 - Step 6: Final answer
x = 24,605,668.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.