Finding the Third Proportional to 128,509,258.75 and 195,777,027.75
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Solution
The third proportional to 128,509,258.75 and 195,777,027.75 is: 298,255,899.75
Step by Step Solution
- Step 1: Write the proportion equation
128,509,258.75 : 195,777,027.75 = 195,777,027.75 : x - Step 2: Convert to fraction form
128,509,258.75/195,777,027.75 = 195,777,027.75/x - Step 3: Cross multiply
128,509,258.75x = 195,777,027.75 × 195,777,027.75 - Step 4: Simplify right side
128,509,258.75x = 38,328,644,594,624,272 - Step 5: Solve for x
x = 38,328,644,594,624,272/128,509,258.75 - Step 6: Final answer
x = 298,255,899.75
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Why These Related Problems?
These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.