Finding the Fourth Proportional to 11,977,580.36, 16,529,392.31 and 7,331,272.90
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Solution
The fourth proportional to 11,977,580.36, 16,529,392.31 and 7,331,272.90 is: 10,117,359.45
Step by Step Solution
- Step 1: Write the proportion equation
11,977,580.36 : 16,529,392.31 = 7,331,272.90 : x - Step 2: Convert to fraction form
11,977,580.36/16,529,392.31 = 7,331,272.90/x - Step 3: Cross multiply
11,977,580.36x = 16,529,392.31 × 7,331,272.90 - Step 4: Simplify right side
11,977,580.36x = 121,181,485,817,791.55 - Step 5: Solve for x
x = 121,181,485,817,791.55/11,977,580.36 - Step 6: Final answer
x = 10,117,359.45
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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.