Finding the Fourth Proportional to 8,139,400.74, 12,199,813.46 and 3,278,594.70
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Solution
The fourth proportional to 8,139,400.74, 12,199,813.46 and 3,278,594.70 is: 4,914,150.93
Step by Step Solution
- Step 1: Write the proportion equation
8,139,400.74 : 12,199,813.46 = 3,278,594.70 : x - Step 2: Convert to fraction form
8,139,400.74/12,199,813.46 = 3,278,594.70/x - Step 3: Cross multiply
8,139,400.74x = 12,199,813.46 × 3,278,594.70 - Step 4: Simplify right side
8,139,400.74x = 39,998,243,750,944.66 - Step 5: Solve for x
x = 39,998,243,750,944.66/8,139,400.74 - Step 6: Final answer
x = 4,914,150.93
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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.