Finding the Fourth Proportional to 28,610,408.09, 39,481,161.78 and 16,221,335.18
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Solution
The fourth proportional to 28,610,408.09, 39,481,161.78 and 16,221,335.18 is: 22,384,761.40
Step by Step Solution
- Step 1: Write the proportion equation
28,610,408.09 : 39,481,161.78 = 16,221,335.18 : x - Step 2: Convert to fraction form
28,610,408.09/39,481,161.78 = 16,221,335.18/x - Step 3: Cross multiply
28,610,408.09x = 39,481,161.78 × 16,221,335.18 - Step 4: Simplify right side
28,610,408.09x = 640,437,158,529,185.38 - Step 5: Solve for x
x = 640,437,158,529,185.38/28,610,408.09 - Step 6: Final answer
x = 22,384,761.40
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1.5x scale
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.