Finding the Fourth Proportional to 18,461,977.18, 25,479,062.59 and 10,203,651.95
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Solution
The fourth proportional to 18,461,977.18, 25,479,062.59 and 10,203,651.95 is: 14,081,887.55
Step by Step Solution
- Step 1: Write the proportion equation
18,461,977.18 : 25,479,062.59 = 10,203,651.95 : x - Step 2: Convert to fraction form
18,461,977.18/25,479,062.59 = 10,203,651.95/x - Step 3: Cross multiply
18,461,977.18x = 25,479,062.59 × 10,203,651.95 - Step 4: Simplify right side
18,461,977.18x = 259,979,486,680,625.53 - Step 5: Solve for x
x = 259,979,486,680,625.53/18,461,977.18 - Step 6: Final answer
x = 14,081,887.55
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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.