Finding the Third Proportional to 121,438,993 and 177,603,979
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Solution
The third proportional to 121,438,993 and 177,603,979 is: 259,745,017.46
Step by Step Solution
- Step 1: Write the proportion equation
121,438,993 : 177,603,979 = 177,603,979 : x - Step 2: Convert to fraction form
121,438,993/177,603,979 = 177,603,979/x - Step 3: Cross multiply
121,438,993x = 177,603,979 × 177,603,979 - Step 4: Simplify right side
121,438,993x = 31,543,173,356,632,440 - Step 5: Solve for x
x = 31,543,173,356,632,440/121,438,993 - Step 6: Final answer
x = 259,745,017.46
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Why These Related Problems?
These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.