Finding the Fourth Proportional to 7,228,371.74, 9,975,168.14 and 3,965,212.82
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Solution
The fourth proportional to 7,228,371.74, 9,975,168.14 and 3,965,212.82 is: 5,472,001.99
Step by Step Solution
- Step 1: Write the proportion equation
7,228,371.74 : 9,975,168.14 = 3,965,212.82 : x - Step 2: Convert to fraction form
7,228,371.74/9,975,168.14 = 3,965,212.82/x - Step 3: Cross multiply
7,228,371.74x = 9,975,168.14 × 3,965,212.82 - Step 4: Simplify right side
7,228,371.74x = 39,553,664,520,681.65 - Step 5: Solve for x
x = 39,553,664,520,681.65/7,228,371.74 - Step 6: Final answer
x = 5,472,001.99
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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.