Finding the Fourth Proportional to 151,351,186.23, 208,864,628.99 and 81,736,560.40
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Solution
The fourth proportional to 151,351,186.23, 208,864,628.99 and 81,736,560.40 is: 112,796,449.03
Step by Step Solution
- Step 1: Write the proportion equation
151,351,186.23 : 208,864,628.99 = 81,736,560.40 : x - Step 2: Convert to fraction form
151,351,186.23/208,864,628.99 = 81,736,560.40/x - Step 3: Cross multiply
151,351,186.23x = 208,864,628.99 × 81,736,560.40 - Step 4: Simplify right side
151,351,186.23x = 17,071,876,362,864,728 - Step 5: Solve for x
x = 17,071,876,362,864,728/151,351,186.23 - Step 6: Final answer
x = 112,796,449.03
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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.