Finding the Fourth Proportional to 18,509,527.31, 25,542,833.90 and 10,249,412.99
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Solution
The fourth proportional to 18,509,527.31, 25,542,833.90 and 10,249,412.99 is: 14,144,016.16
Step by Step Solution
- Step 1: Write the proportion equation
18,509,527.31 : 25,542,833.90 = 10,249,412.99 : x - Step 2: Convert to fraction form
18,509,527.31/25,542,833.90 = 10,249,412.99/x - Step 3: Cross multiply
18,509,527.31x = 25,542,833.90 × 10,249,412.99 - Step 4: Simplify right side
18,509,527.31x = 261,799,053,397,111.09 - Step 5: Solve for x
x = 261,799,053,397,111.09/18,509,527.31 - Step 6: Final answer
x = 14,144,016.16
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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.