Finding the Fourth Proportional to 157,970,887.93, 218,001,207.09 and 88,362,745.75
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Solution
The fourth proportional to 157,970,887.93, 218,001,207.09 and 88,362,745.75 is: 121,941,362.03
Step by Step Solution
- Step 1: Write the proportion equation
157,970,887.93 : 218,001,207.09 = 88,362,745.75 : x - Step 2: Convert to fraction form
157,970,887.93/218,001,207.09 = 88,362,745.75/x - Step 3: Cross multiply
157,970,887.93x = 218,001,207.09 × 88,362,745.75 - Step 4: Simplify right side
157,970,887.93x = 19,263,185,235,286,768 - Step 5: Solve for x
x = 19,263,185,235,286,768/157,970,887.93 - Step 6: Final answer
x = 121,941,362.03
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.