Finding the Fourth Proportional to 76,906,582.38, 106,128,423.45 and 43,877,524.23
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Solution
The fourth proportional to 76,906,582.38, 106,128,423.45 and 43,877,524.23 is: 60,549,465.69
Step by Step Solution
- Step 1: Write the proportion equation
76,906,582.38 : 106,128,423.45 = 43,877,524.23 : x - Step 2: Convert to fraction form
76,906,582.38/106,128,423.45 = 43,877,524.23/x - Step 3: Cross multiply
76,906,582.38x = 106,128,423.45 × 43,877,524.23 - Step 4: Simplify right side
76,906,582.38x = 4,656,652,471,419,075 - Step 5: Solve for x
x = 4,656,652,471,419,075/76,906,582.38 - Step 6: Final answer
x = 60,549,465.69
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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.