Finding the Fourth Proportional to 13,295,936.99, 18,356,932.44 and 8,341,171.40
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Solution
The fourth proportional to 13,295,936.99, 18,356,932.44 and 8,341,171.40 is: 11,516,173.70
Step by Step Solution
- Step 1: Write the proportion equation
13,295,936.99 : 18,356,932.44 = 8,341,171.40 : x - Step 2: Convert to fraction form
13,295,936.99/18,356,932.44 = 8,341,171.40/x - Step 3: Cross multiply
13,295,936.99x = 18,356,932.44 × 8,341,171.40 - Step 4: Simplify right side
13,295,936.99x = 153,118,319,906,152.56 - Step 5: Solve for x
x = 153,118,319,906,152.56/13,295,936.99 - Step 6: Final answer
x = 11,516,173.70
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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.