Finding the Fourth Proportional to 257,178,052.42, 354,863,641.58 and 151,420,589.92
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Solution
The fourth proportional to 257,178,052.42, 354,863,641.58 and 151,420,589.92 is: 208,935,643.78
Step by Step Solution
- Step 1: Write the proportion equation
257,178,052.42 : 354,863,641.58 = 151,420,589.92 : x - Step 2: Convert to fraction form
257,178,052.42/354,863,641.58 = 151,420,589.92/x - Step 3: Cross multiply
257,178,052.42x = 354,863,641.58 × 151,420,589.92 - Step 4: Simplify right side
257,178,052.42x = 53,733,661,949,203,032 - Step 5: Solve for x
x = 53,733,661,949,203,032/257,178,052.42 - Step 6: Final answer
x = 208,935,643.78
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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.