Finding the Fourth Proportional to 20,071,637.99, 27,699,428.01 and 11,369,807.99
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Solution
The fourth proportional to 20,071,637.99, 27,699,428.01 and 11,369,807.99 is: 15,690,656.54
Step by Step Solution
- Step 1: Write the proportion equation
20,071,637.99 : 27,699,428.01 = 11,369,807.99 : x - Step 2: Convert to fraction form
20,071,637.99/27,699,428.01 = 11,369,807.99/x - Step 3: Cross multiply
20,071,637.99x = 27,699,428.01 × 11,369,807.99 - Step 4: Simplify right side
20,071,637.99x = 314,937,177,906,527.81 - Step 5: Solve for x
x = 314,937,177,906,527.81/20,071,637.99 - Step 6: Final answer
x = 15,690,656.54
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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.