Finding the Fourth Proportional to 306,465,819.74, 422,931,765.44 and 167,245,549.58
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Solution
The fourth proportional to 306,465,819.74, 422,931,765.44 and 167,245,549.58 is: 230,803,734.01
Step by Step Solution
- Step 1: Write the proportion equation
306,465,819.74 : 422,931,765.44 = 167,245,549.58 : x - Step 2: Convert to fraction form
306,465,819.74/422,931,765.44 = 167,245,549.58/x - Step 3: Cross multiply
306,465,819.74x = 422,931,765.44 × 167,245,549.58 - Step 4: Simplify right side
306,465,819.74x = 70,733,455,544,009,424 - Step 5: Solve for x
x = 70,733,455,544,009,424/306,465,819.74 - Step 6: Final answer
x = 230,803,734.01
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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.