Finding the Fourth Proportional to 31,335,489.99, 43,243,132.70 and 19,581,583.48
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Solution
The fourth proportional to 31,335,489.99, 43,243,132.70 and 19,581,583.48 is: 27,022,683.01
Step by Step Solution
- Step 1: Write the proportion equation
31,335,489.99 : 43,243,132.70 = 19,581,583.48 : x - Step 2: Convert to fraction form
31,335,489.99/43,243,132.70 = 19,581,583.48/x - Step 3: Cross multiply
31,335,489.99x = 43,243,132.70 × 19,581,583.48 - Step 4: Simplify right side
31,335,489.99x = 846,769,013,004,775.62 - Step 5: Solve for x
x = 846,769,013,004,775.62/31,335,489.99 - Step 6: Final answer
x = 27,022,683.01
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.