Finding the Fourth Proportional to 7,855,651.68, 10,834,651.71 and 5,376,342.12
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Solution
The fourth proportional to 7,855,651.68, 10,834,651.71 and 5,376,342.12 is: 7,415,144.75
Step by Step Solution
- Step 1: Write the proportion equation
7,855,651.68 : 10,834,651.71 = 5,376,342.12 : x - Step 2: Convert to fraction form
7,855,651.68/10,834,651.71 = 5,376,342.12/x - Step 3: Cross multiply
7,855,651.68x = 10,834,651.71 × 5,376,342.12 - Step 4: Simplify right side
7,855,651.68x = 58,250,794,344,003.03 - Step 5: Solve for x
x = 58,250,794,344,003.03/7,855,651.68 - Step 6: Final answer
x = 7,415,144.75
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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.