Finding the Fourth Proportional to 18,986,490.88, 26,201,483.21 and 10,284,663.48
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Solution
The fourth proportional to 18,986,490.88, 26,201,483.21 and 10,284,663.48 is: 14,192,903.75
Step by Step Solution
- Step 1: Write the proportion equation
18,986,490.88 : 26,201,483.21 = 10,284,663.48 : x - Step 2: Convert to fraction form
18,986,490.88/26,201,483.21 = 10,284,663.48/x - Step 3: Cross multiply
18,986,490.88x = 26,201,483.21 × 10,284,663.48 - Step 4: Simplify right side
18,986,490.88x = 269,473,437,640,238.19 - Step 5: Solve for x
x = 269,473,437,640,238.19/18,986,490.88 - Step 6: Final answer
x = 14,192,903.75
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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.