Finding the Fourth Proportional to 696,863,509.82, 961,691,467.64 and 379,344,232.84
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Solution
The fourth proportional to 696,863,509.82, 961,691,467.64 and 379,344,232.84 is: 523,505,832.75
Step by Step Solution
- Step 1: Write the proportion equation
696,863,509.82 : 961,691,467.64 = 379,344,232.84 : x - Step 2: Convert to fraction form
696,863,509.82/961,691,467.64 = 379,344,232.84/x - Step 3: Cross multiply
696,863,509.82x = 961,691,467.64 × 379,344,232.84 - Step 4: Simplify right side
696,863,509.82x = 364,812,112,020,669,440 - Step 5: Solve for x
x = 364,812,112,020,669,440/696,863,509.82 - Step 6: Final answer
x = 523,505,832.75
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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.