Finding the Fourth Proportional to 21,018,924.48, 29,006,133.97 and 11,726,496.46
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Solution
The fourth proportional to 21,018,924.48, 29,006,133.97 and 11,726,496.46 is: 16,182,575.26
Step by Step Solution
- Step 1: Write the proportion equation
21,018,924.48 : 29,006,133.97 = 11,726,496.46 : x - Step 2: Convert to fraction form
21,018,924.48/29,006,133.97 = 11,726,496.46/x - Step 3: Cross multiply
21,018,924.48x = 29,006,133.97 × 11,726,496.46 - Step 4: Simplify right side
21,018,924.48x = 340,140,327,317,490.75 - Step 5: Solve for x
x = 340,140,327,317,490.75/21,018,924.48 - Step 6: Final answer
x = 16,182,575.26
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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.