Finding the Fourth Proportional to 18,081,862.96, 24,959,518.68 and 11,972,259.76
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Solution
The fourth proportional to 18,081,862.96, 24,959,518.68 and 11,972,259.76 is: 16,526,053.86
Step by Step Solution
- Step 1: Write the proportion equation
18,081,862.96 : 24,959,518.68 = 11,972,259.76 : x - Step 2: Convert to fraction form
18,081,862.96/24,959,518.68 = 11,972,259.76/x - Step 3: Cross multiply
18,081,862.96x = 24,959,518.68 × 11,972,259.76 - Step 4: Simplify right side
18,081,862.96x = 298,821,841,121,532.31 - Step 5: Solve for x
x = 298,821,841,121,532.31/18,081,862.96 - Step 6: Final answer
x = 16,526,053.86
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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.