Finding the Fourth Proportional to 230,585,453.40, 318,207,715.74 and 126,163,959.96
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Solution
The fourth proportional to 230,585,453.40, 318,207,715.74 and 126,163,959.96 is: 174,106,149.87
Step by Step Solution
- Step 1: Write the proportion equation
230,585,453.40 : 318,207,715.74 = 126,163,959.96 : x - Step 2: Convert to fraction form
230,585,453.40/318,207,715.74 = 126,163,959.96/x - Step 3: Cross multiply
230,585,453.40x = 318,207,715.74 × 126,163,959.96 - Step 4: Simplify right side
230,585,453.40x = 40,146,345,507,584,424 - Step 5: Solve for x
x = 40,146,345,507,584,424/230,585,453.40 - Step 6: Final answer
x = 174,106,149.87
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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.