Finding the Fourth Proportional to 6,186,465.84, 9,286,486.56 and 4,915,243.20
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Solution
The fourth proportional to 6,186,465.84, 9,286,486.56 and 4,915,243.20 is: 7,378,257.81
Step by Step Solution
- Step 1: Write the proportion equation
6,186,465.84 : 9,286,486.56 = 4,915,243.20 : x - Step 2: Convert to fraction form
6,186,465.84/9,286,486.56 = 4,915,243.20/x - Step 3: Cross multiply
6,186,465.84x = 9,286,486.56 × 4,915,243.20 - Step 4: Simplify right side
6,186,465.84x = 45,645,339,915,931.40 - Step 5: Solve for x
x = 45,645,339,915,931.40/6,186,465.84 - Step 6: Final answer
x = 7,378,257.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.