Finding the Fourth Proportional to 1,419,942,447.09, 2,130,142,540.82 and 437,368,529.48
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Solution
The fourth proportional to 1,419,942,447.09, 2,130,142,540.82 and 437,368,529.48 is: 656,123,290.46
Step by Step Solution
- Step 1: Write the proportion equation
1,419,942,447.09 : 2,130,142,540.82 = 437,368,529.48 : x - Step 2: Convert to fraction form
1,419,942,447.09/2,130,142,540.82 = 437,368,529.48/x - Step 3: Cross multiply
1,419,942,447.09x = 2,130,142,540.82 × 437,368,529.48 - Step 4: Simplify right side
1,419,942,447.09x = 931,657,310,648,396,800 - Step 5: Solve for x
x = 931,657,310,648,396,800/1,419,942,447.09 - Step 6: Final answer
x = 656,123,290.46
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.