Finding the Fourth Proportional to 20,317,564.68, 28,030,257.99 and 11,611,066.56
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Solution
The fourth proportional to 20,317,564.68, 28,030,257.99 and 11,611,066.56 is: 16,018,710.72
Step by Step Solution
- Step 1: Write the proportion equation
20,317,564.68 : 28,030,257.99 = 11,611,066.56 : x - Step 2: Convert to fraction form
20,317,564.68/28,030,257.99 = 11,611,066.56/x - Step 3: Cross multiply
20,317,564.68x = 28,030,257.99 × 11,611,066.56 - Step 4: Simplify right side
20,317,564.68x = 325,461,191,215,861.81 - Step 5: Solve for x
x = 325,461,191,215,861.81/20,317,564.68 - Step 6: Final answer
x = 16,018,710.72
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.