Finding the Fourth Proportional to 518,663,151.62, 778,049,232.42 and 168,936,471.82
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Solution
The fourth proportional to 518,663,151.62, 778,049,232.42 and 168,936,471.82 is: 253,422,460.84
Step by Step Solution
- Step 1: Write the proportion equation
518,663,151.62 : 778,049,232.42 = 168,936,471.82 : x - Step 2: Convert to fraction form
518,663,151.62/778,049,232.42 = 168,936,471.82/x - Step 3: Cross multiply
518,663,151.62x = 778,049,232.42 × 168,936,471.82 - Step 4: Simplify right side
518,663,151.62x = 131,440,892,229,902,480 - Step 5: Solve for x
x = 131,440,892,229,902,480/518,663,151.62 - Step 6: Final answer
x = 253,422,460.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.