Finding the Fourth Proportional to 8,649,990.20, 12,970,991.52 and 3,183,711.95
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Solution
The fourth proportional to 8,649,990.20, 12,970,991.52 and 3,183,711.95 is: 4,774,097.98
Step by Step Solution
- Step 1: Write the proportion equation
8,649,990.20 : 12,970,991.52 = 3,183,711.95 : x - Step 2: Convert to fraction form
8,649,990.20/12,970,991.52 = 3,183,711.95/x - Step 3: Cross multiply
8,649,990.20x = 12,970,991.52 × 3,183,711.95 - Step 4: Simplify right side
8,649,990.20x = 41,295,900,705,572.66 - Step 5: Solve for x
x = 41,295,900,705,572.66/8,649,990.20 - Step 6: Final answer
x = 4,774,097.98
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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.