Finding the Fourth Proportional to 212,313,183.66, 292,741,491.51 and 145,364,606.46
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Solution
The fourth proportional to 212,313,183.66, 292,741,491.51 and 145,364,606.46 is: 200,431,508.65
Step by Step Solution
- Step 1: Write the proportion equation
212,313,183.66 : 292,741,491.51 = 145,364,606.46 : x - Step 2: Convert to fraction form
212,313,183.66/292,741,491.51 = 145,364,606.46/x - Step 3: Cross multiply
212,313,183.66x = 292,741,491.51 × 145,364,606.46 - Step 4: Simplify right side
212,313,183.66x = 42,554,251,707,864,584 - Step 5: Solve for x
x = 42,554,251,707,864,584/212,313,183.66 - Step 6: Final answer
x = 200,431,508.65
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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.