Finding the Fourth Proportional to 306,465,860.88, 422,931,820.14 and 167,245,590.60
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Solution
The fourth proportional to 306,465,860.88, 422,931,820.14 and 167,245,590.60 is: 230,803,789.50
Step by Step Solution
- Step 1: Write the proportion equation
306,465,860.88 : 422,931,820.14 = 167,245,590.60 : x - Step 2: Convert to fraction form
306,465,860.88/422,931,820.14 = 167,245,590.60/x - Step 3: Cross multiply
306,465,860.88x = 422,931,820.14 × 167,245,590.60 - Step 4: Simplify right side
306,465,860.88x = 70,733,482,042,847,272 - Step 5: Solve for x
x = 70,733,482,042,847,272/306,465,860.88 - Step 6: Final answer
x = 230,803,789.50
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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.