Finding the Fourth Proportional to 13,575,311.37, 18,732,814.79 and 7,992,670.41
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Solution
The fourth proportional to 13,575,311.37, 18,732,814.79 and 7,992,670.41 is: 11,029,228.75
Step by Step Solution
- Step 1: Write the proportion equation
13,575,311.37 : 18,732,814.79 = 7,992,670.41 : x - Step 2: Convert to fraction form
13,575,311.37/18,732,814.79 = 7,992,670.41/x - Step 3: Cross multiply
13,575,311.37x = 18,732,814.79 × 7,992,670.41 - Step 4: Simplify right side
13,575,311.37x = 149,725,214,428,080.03 - Step 5: Solve for x
x = 149,725,214,428,080.03/13,575,311.37 - Step 6: Final answer
x = 11,029,228.75
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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.