Finding the Fourth Proportional to 1,419,605,110.97, 2,129,473,431.36 and 437,075,659.74
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Solution
The fourth proportional to 1,419,605,110.97, 2,129,473,431.36 and 437,075,659.74 is: 655,633,737.67
Step by Step Solution
- Step 1: Write the proportion equation
1,419,605,110.97 : 2,129,473,431.36 = 437,075,659.74 : x - Step 2: Convert to fraction form
1,419,605,110.97/2,129,473,431.36 = 437,075,659.74/x - Step 3: Cross multiply
1,419,605,110.97x = 2,129,473,431.36 × 437,075,659.74 - Step 4: Simplify right side
1,419,605,110.97x = 930,741,004,910,473,600 - Step 5: Solve for x
x = 930,741,004,910,473,600/1,419,605,110.97 - Step 6: Final answer
x = 655,633,737.67
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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.