Finding the Third Proportional to 66,809,880 and 139,728,354
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Solution
The third proportional to 66,809,880 and 139,728,354 is: 292,232,419.99
Step by Step Solution
- Step 1: Write the proportion equation
66,809,880 : 139,728,354 = 139,728,354 : x - Step 2: Convert to fraction form
66,809,880/139,728,354 = 139,728,354/x - Step 3: Cross multiply
66,809,880x = 139,728,354 × 139,728,354 - Step 4: Simplify right side
66,809,880x = 19,524,012,911,549,316 - Step 5: Solve for x
x = 19,524,012,911,549,316/66,809,880 - Step 6: Final answer
x = 292,232,419.99
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Why These Related Problems?
These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.