Finding the Fourth Proportional to 7,486,789.05, 10,331,775.74 and 4,049,030.09
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Solution
The fourth proportional to 7,486,789.05, 10,331,775.74 and 4,049,030.09 is: 5,587,665.22
Step by Step Solution
- Step 1: Write the proportion equation
7,486,789.05 : 10,331,775.74 = 4,049,030.09 : x - Step 2: Convert to fraction form
7,486,789.05/10,331,775.74 = 4,049,030.09/x - Step 3: Cross multiply
7,486,789.05x = 10,331,775.74 × 4,049,030.09 - Step 4: Simplify right side
7,486,789.05x = 41,833,670,782,487.98 - Step 5: Solve for x
x = 41,833,670,782,487.98/7,486,789.05 - Step 6: Final answer
x = 5,587,665.22
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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.