Finding the Fourth Proportional to 7,763,557.58, 10,713,568.79 and 4,231,384.78
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Solution
The fourth proportional to 7,763,557.58, 10,713,568.79 and 4,231,384.78 is: 5,839,234.32
Step by Step Solution
- Step 1: Write the proportion equation
7,763,557.58 : 10,713,568.79 = 4,231,384.78 : x - Step 2: Convert to fraction form
7,763,557.58/10,713,568.79 = 4,231,384.78/x - Step 3: Cross multiply
7,763,557.58x = 10,713,568.79 × 4,231,384.78 - Step 4: Simplify right side
7,763,557.58x = 45,333,231,842,764.25 - Step 5: Solve for x
x = 45,333,231,842,764.25/7,763,557.58 - Step 6: Final answer
x = 5,839,234.32
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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.