Finding the Fourth Proportional to 18,431,181.99, 25,435,642.05 and 10,059,010.20
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Solution
The fourth proportional to 18,431,181.99, 25,435,642.05 and 10,059,010.20 is: 13,881,767.48
Step by Step Solution
- Step 1: Write the proportion equation
18,431,181.99 : 25,435,642.05 = 10,059,010.20 : x - Step 2: Convert to fraction form
18,431,181.99/25,435,642.05 = 10,059,010.20/x - Step 3: Cross multiply
18,431,181.99x = 25,435,642.05 × 10,059,010.20 - Step 4: Simplify right side
18,431,181.99x = 255,857,382,824,498.91 - Step 5: Solve for x
x = 255,857,382,824,498.91/18,431,181.99 - Step 6: Final answer
x = 13,881,767.48
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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.