Finding the Fourth Proportional to 20,260,611.90, 30,365,113.05 and 8,279,811.90
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Solution
The fourth proportional to 20,260,611.90, 30,365,113.05 and 8,279,811.90 is: 12,409,172.32
Step by Step Solution
- Step 1: Write the proportion equation
20,260,611.90 : 30,365,113.05 = 8,279,811.90 : x - Step 2: Convert to fraction form
20,260,611.90/30,365,113.05 = 8,279,811.90/x - Step 3: Cross multiply
20,260,611.90x = 30,365,113.05 × 8,279,811.90 - Step 4: Simplify right side
20,260,611.90x = 251,417,424,376,235.31 - Step 5: Solve for x
x = 251,417,424,376,235.31/20,260,611.90 - Step 6: Final answer
x = 12,409,172.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.