Finding the Fourth Proportional to 1,907,431,252.68, 2,861,283,081.45 and 508,408,195.97
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Solution
The fourth proportional to 1,907,431,252.68, 2,861,283,081.45 and 508,408,195.97 is: 762,648,597.45
Step by Step Solution
- Step 1: Write the proportion equation
1,907,431,252.68 : 2,861,283,081.45 = 508,408,195.97 : x - Step 2: Convert to fraction form
1,907,431,252.68/2,861,283,081.45 = 508,408,195.97/x - Step 3: Cross multiply
1,907,431,252.68x = 2,861,283,081.45 × 508,408,195.97 - Step 4: Simplify right side
1,907,431,252.68x = 1,454,699,769,585,170,432 - Step 5: Solve for x
x = 1,454,699,769,585,170,432/1,907,431,252.68 - Step 6: Final answer
x = 762,648,597.45
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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.