Finding the Fourth Proportional to 2,381,162,302.47, 3,286,188,041.76 and 1,428,578,889.03
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Solution
The fourth proportional to 2,381,162,302.47, 3,286,188,041.76 and 1,428,578,889.03 is: 1,971,549,296.31
Step by Step Solution
- Step 1: Write the proportion equation
2,381,162,302.47 : 3,286,188,041.76 = 1,428,578,889.03 : x - Step 2: Convert to fraction form
2,381,162,302.47/3,286,188,041.76 = 1,428,578,889.03/x - Step 3: Cross multiply
2,381,162,302.47x = 3,286,188,041.76 × 1,428,578,889.03 - Step 4: Simplify right side
2,381,162,302.47x = 4,694,578,861,841,172,480 - Step 5: Solve for x
x = 4,694,578,861,841,172,480/2,381,162,302.47 - Step 6: Final answer
x = 1,971,549,296.31
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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.