Finding the Fourth Proportional to 306,466,391.56, 422,932,551.87 and 167,246,120.74
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Solution
The fourth proportional to 306,466,391.56, 422,932,551.87 and 167,246,120.74 is: 230,804,520.77
Step by Step Solution
- Step 1: Write the proportion equation
306,466,391.56 : 422,932,551.87 = 167,246,120.74 : x - Step 2: Convert to fraction form
306,466,391.56/422,932,551.87 = 167,246,120.74/x - Step 3: Cross multiply
306,466,391.56x = 422,932,551.87 × 167,246,120.74 - Step 4: Simplify right side
306,466,391.56x = 70,733,828,634,926,336 - Step 5: Solve for x
x = 70,733,828,634,926,336/306,466,391.56 - Step 6: Final answer
x = 230,804,520.77
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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.