Finding the Third Proportional to 128,276,593 and 280,066,336
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Solution
The third proportional to 128,276,593 and 280,066,336 is: 611,468,941.65
Step by Step Solution
- Step 1: Write the proportion equation
128,276,593 : 280,066,336 = 280,066,336 : x - Step 2: Convert to fraction form
128,276,593/280,066,336 = 280,066,336/x - Step 3: Cross multiply
128,276,593x = 280,066,336 × 280,066,336 - Step 4: Simplify right side
128,276,593x = 78,437,152,560,464,896 - Step 5: Solve for x
x = 78,437,152,560,464,896/128,276,593 - Step 6: Final answer
x = 611,468,941.65
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Why These Related Problems?
These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.