Finding the Fourth Proportional to 15,461,339.99, 21,336,906.36 and 8,492,662.45
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Solution
The fourth proportional to 15,461,339.99, 21,336,906.36 and 8,492,662.45 is: 11,720,015.45
Step by Step Solution
- Step 1: Write the proportion equation
15,461,339.99 : 21,336,906.36 = 8,492,662.45 : x - Step 2: Convert to fraction form
15,461,339.99/21,336,906.36 = 8,492,662.45/x - Step 3: Cross multiply
15,461,339.99x = 21,336,906.36 × 8,492,662.45 - Step 4: Simplify right side
15,461,339.99x = 181,207,143,537,311.47 - Step 5: Solve for x
x = 181,207,143,537,311.47/15,461,339.99 - Step 6: Final answer
x = 11,720,015.45
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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.