Finding the Fourth Proportional to 660,694,282.05, 911,782,081.74 and 378,491,264
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Solution
The fourth proportional to 660,694,282.05, 911,782,081.74 and 378,491,264 is: 522,331,677.43
Step by Step Solution
- Step 1: Write the proportion equation
660,694,282.05 : 911,782,081.74 = 378,491,264 : x - Step 2: Convert to fraction form
660,694,282.05/911,782,081.74 = 378,491,264/x - Step 3: Cross multiply
660,694,282.05x = 911,782,081.74 × 378,491,264 - Step 4: Simplify right side
660,694,282.05x = 345,101,552,610,323,904 - Step 5: Solve for x
x = 345,101,552,610,323,904/660,694,282.05 - Step 6: Final answer
x = 522,331,677.43
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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.