Finding the Fourth Proportional to 20,719,732.68, 31,074,297.60 and 6,143,243.79
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Solution
The fourth proportional to 20,719,732.68, 31,074,297.60 and 6,143,243.79 is: 9,213,293.85
Step by Step Solution
- Step 1: Write the proportion equation
20,719,732.68 : 31,074,297.60 = 6,143,243.79 : x - Step 2: Convert to fraction form
20,719,732.68/31,074,297.60 = 6,143,243.79/x - Step 3: Cross multiply
20,719,732.68x = 31,074,297.60 × 6,143,243.79 - Step 4: Simplify right side
20,719,732.68x = 190,896,985,759,811.91 - Step 5: Solve for x
x = 190,896,985,759,811.91/20,719,732.68 - Step 6: Final answer
x = 9,213,293.85
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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.