Finding the Fourth Proportional to 8,687,201.81, 11,988,178.94 and 4,819,639.93
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Solution
The fourth proportional to 8,687,201.81, 11,988,178.94 and 4,819,639.93 is: 6,651,014.58
Step by Step Solution
- Step 1: Write the proportion equation
8,687,201.81 : 11,988,178.94 = 4,819,639.93 : x - Step 2: Convert to fraction form
8,687,201.81/11,988,178.94 = 4,819,639.93/x - Step 3: Cross multiply
8,687,201.81x = 11,988,178.94 × 4,819,639.93 - Step 4: Simplify right side
8,687,201.81x = 57,778,705,889,287.73 - Step 5: Solve for x
x = 57,778,705,889,287.73/8,687,201.81 - Step 6: Final answer
x = 6,651,014.58
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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.