Finding the Fourth Proportional to 257,178,047.16, 354,863,634.35 and 151,420,584.68
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Solution
The fourth proportional to 257,178,047.16, 354,863,634.35 and 151,420,584.68 is: 208,935,636.56
Step by Step Solution
- Step 1: Write the proportion equation
257,178,047.16 : 354,863,634.35 = 151,420,584.68 : x - Step 2: Convert to fraction form
257,178,047.16/354,863,634.35 = 151,420,584.68/x - Step 3: Cross multiply
257,178,047.16x = 354,863,634.35 × 151,420,584.68 - Step 4: Simplify right side
257,178,047.16x = 53,733,658,992,415,320 - Step 5: Solve for x
x = 53,733,658,992,415,320/257,178,047.16 - Step 6: Final answer
x = 208,935,636.56
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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.