Finding the Third Proportional to 128,345,274.56 and 280,209,552.19
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Solution
The third proportional to 128,345,274.56 and 280,209,552.19 is: 611,766,918.61
Step by Step Solution
- Step 1: Write the proportion equation
128,345,274.56 : 280,209,552.19 = 280,209,552.19 : x - Step 2: Convert to fraction form
128,345,274.56/280,209,552.19 = 280,209,552.19/x - Step 3: Cross multiply
128,345,274.56x = 280,209,552.19 × 280,209,552.19 - Step 4: Simplify right side
128,345,274.56x = 78,517,393,137,119,280 - Step 5: Solve for x
x = 78,517,393,137,119,280/128,345,274.56 - Step 6: Final answer
x = 611,766,918.61
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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.