Finding the Fourth Proportional to 28,408,212.12, 39,207,174 and 16,020,852.96
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Solution
The fourth proportional to 28,408,212.12, 39,207,174 and 16,020,852.96 is: 22,110,943.38
Step by Step Solution
- Step 1: Write the proportion equation
28,408,212.12 : 39,207,174 = 16,020,852.96 : x - Step 2: Convert to fraction form
28,408,212.12/39,207,174 = 16,020,852.96/x - Step 3: Cross multiply
28,408,212.12x = 39,207,174 × 16,020,852.96 - Step 4: Simplify right side
28,408,212.12x = 628,132,369,631,135.12 - Step 5: Solve for x
x = 628,132,369,631,135.12/28,408,212.12 - Step 6: Final answer
x = 22,110,943.38
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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.