Finding the Fourth Proportional to 7,128,879.72, 10,692,876.71 and 2,271,066.11
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Solution
The fourth proportional to 7,128,879.72, 10,692,876.71 and 2,271,066.11 is: 3,406,458.09
Step by Step Solution
- Step 1: Write the proportion equation
7,128,879.72 : 10,692,876.71 = 2,271,066.11 : x - Step 2: Convert to fraction form
7,128,879.72/10,692,876.71 = 2,271,066.11/x - Step 3: Cross multiply
7,128,879.72x = 10,692,876.71 × 2,271,066.11 - Step 4: Simplify right side
7,128,879.72x = 24,284,229,971,206.55 - Step 5: Solve for x
x = 24,284,229,971,206.55/7,128,879.72 - Step 6: Final answer
x = 3,406,458.09
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.