Finding the Fourth Proportional to 153,431,251.79, 230,148,872.12 and 51,195,289.41
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Solution
The fourth proportional to 153,431,251.79, 230,148,872.12 and 51,195,289.41 is: 76,793,599.60
Step by Step Solution
- Step 1: Write the proportion equation
153,431,251.79 : 230,148,872.12 = 51,195,289.41 : x - Step 2: Convert to fraction form
153,431,251.79/230,148,872.12 = 51,195,289.41/x - Step 3: Cross multiply
153,431,251.79x = 230,148,872.12 × 51,195,289.41 - Step 4: Simplify right side
153,431,251.79x = 11,782,538,115,568,480 - Step 5: Solve for x
x = 11,782,538,115,568,480/153,431,251.79 - Step 6: Final answer
x = 76,793,599.60
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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.