Finding the Fourth Proportional to 18,894,341.82, 28,337,313.69 and 7,962,841.02
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Solution
The fourth proportional to 18,894,341.82, 28,337,313.69 and 7,962,841.02 is: 11,942,491.88
Step by Step Solution
- Step 1: Write the proportion equation
18,894,341.82 : 28,337,313.69 = 7,962,841.02 : x - Step 2: Convert to fraction form
18,894,341.82/28,337,313.69 = 7,962,841.02/x - Step 3: Cross multiply
18,894,341.82x = 28,337,313.69 × 7,962,841.02 - Step 4: Simplify right side
18,894,341.82x = 225,645,523,847,339.56 - Step 5: Solve for x
x = 225,645,523,847,339.56/18,894,341.82 - Step 6: Final answer
x = 11,942,491.88
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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.