Finding the Fourth Proportional to 306,465,878.38, 422,931,844.30 and 167,245,608.10
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Solution
The fourth proportional to 306,465,878.38, 422,931,844.30 and 167,245,608.10 is: 230,803,813.65
Step by Step Solution
- Step 1: Write the proportion equation
306,465,878.38 : 422,931,844.30 = 167,245,608.10 : x - Step 2: Convert to fraction form
306,465,878.38/422,931,844.30 = 167,245,608.10/x - Step 3: Cross multiply
306,465,878.38x = 422,931,844.30 × 167,245,608.10 - Step 4: Simplify right side
306,465,878.38x = 70,733,493,484,808,016 - Step 5: Solve for x
x = 70,733,493,484,808,016/306,465,878.38 - Step 6: Final answer
x = 230,803,813.65
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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.