Finding the Fourth Proportional to 10,752,459.20, 16,128,688.80 and 6,771,147.20
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Solution
The fourth proportional to 10,752,459.20, 16,128,688.80 and 6,771,147.20 is: 10,156,720.80
Step by Step Solution
- Step 1: Write the proportion equation
10,752,459.20 : 16,128,688.80 = 6,771,147.20 : x - Step 2: Convert to fraction form
10,752,459.20/16,128,688.80 = 6,771,147.20/x - Step 3: Cross multiply
10,752,459.20x = 16,128,688.80 × 6,771,147.20 - Step 4: Simplify right side
10,752,459.20x = 109,209,726,007,791.38 - Step 5: Solve for x
x = 109,209,726,007,791.38/10,752,459.20 - Step 6: Final answer
x = 10,156,720.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.