Finding the Fourth Proportional to 8,221,678.16, 12,332,221.99 and 2,156,361.71
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Solution
The fourth proportional to 8,221,678.16, 12,332,221.99 and 2,156,361.71 is: 3,234,465.12
Step by Step Solution
- Step 1: Write the proportion equation
8,221,678.16 : 12,332,221.99 = 2,156,361.71 : x - Step 2: Convert to fraction form
8,221,678.16/12,332,221.99 = 2,156,361.71/x - Step 3: Cross multiply
8,221,678.16x = 12,332,221.99 × 2,156,361.71 - Step 4: Simplify right side
8,221,678.16x = 26,592,731,231,403.99 - Step 5: Solve for x
x = 26,592,731,231,403.99/8,221,678.16 - Step 6: Final answer
x = 3,234,465.12
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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.