Finding the Fourth Proportional to 11,577,414.60, 15,977,559.56 and 6,420,776.20
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Solution
The fourth proportional to 11,577,414.60, 15,977,559.56 and 6,420,776.20 is: 8,861,074.57
Step by Step Solution
- Step 1: Write the proportion equation
11,577,414.60 : 15,977,559.56 = 6,420,776.20 : x - Step 2: Convert to fraction form
11,577,414.60/15,977,559.56 = 6,420,776.20/x - Step 3: Cross multiply
11,577,414.60x = 15,977,559.56 × 6,420,776.20 - Step 4: Simplify right side
11,577,414.60x = 102,588,334,084,882.69 - Step 5: Solve for x
x = 102,588,334,084,882.69/11,577,414.60 - Step 6: Final answer
x = 8,861,074.57
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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.