Finding the Fourth Proportional to 2,381,161,987.44, 3,286,187,607.21 and 1,428,578,574.06
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Solution
The fourth proportional to 2,381,161,987.44, 3,286,187,607.21 and 1,428,578,574.06 is: 1,971,548,861.76
Step by Step Solution
- Step 1: Write the proportion equation
2,381,161,987.44 : 3,286,187,607.21 = 1,428,578,574.06 : x - Step 2: Convert to fraction form
2,381,161,987.44/3,286,187,607.21 = 1,428,578,574.06/x - Step 3: Cross multiply
2,381,161,987.44x = 3,286,187,607.21 × 1,428,578,574.06 - Step 4: Simplify right side
2,381,161,987.44x = 4,694,577,206,001,704,960 - Step 5: Solve for x
x = 4,694,577,206,001,704,960/2,381,161,987.44 - Step 6: Final answer
x = 1,971,548,861.76
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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.