Finding the Fourth Proportional to 151,351,208.11, 208,864,659.14 and 81,736,582.24
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Solution
The fourth proportional to 151,351,208.11, 208,864,659.14 and 81,736,582.24 is: 112,796,479.14
Step by Step Solution
- Step 1: Write the proportion equation
151,351,208.11 : 208,864,659.14 = 81,736,582.24 : x - Step 2: Convert to fraction form
151,351,208.11/208,864,659.14 = 81,736,582.24/x - Step 3: Cross multiply
151,351,208.11x = 208,864,659.14 × 81,736,582.24 - Step 4: Simplify right side
151,351,208.11x = 17,071,883,388,417,492 - Step 5: Solve for x
x = 17,071,883,388,417,492/151,351,208.11 - Step 6: Final answer
x = 112,796,479.14
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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.