Finding the Fourth Proportional to 1,419,605,111.97, 2,129,473,432.86 and 437,075,660.74
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Solution
The fourth proportional to 1,419,605,111.97, 2,129,473,432.86 and 437,075,660.74 is: 655,633,739.16
Step by Step Solution
- Step 1: Write the proportion equation
1,419,605,111.97 : 2,129,473,432.86 = 437,075,660.74 : x - Step 2: Convert to fraction form
1,419,605,111.97/2,129,473,432.86 = 437,075,660.74/x - Step 3: Cross multiply
1,419,605,111.97x = 2,129,473,432.86 × 437,075,660.74 - Step 4: Simplify right side
1,419,605,111.97x = 930,741,007,695,560,448 - Step 5: Solve for x
x = 930,741,007,695,560,448/1,419,605,111.97 - Step 6: Final answer
x = 655,633,739.16
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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.