Finding the Fourth Proportional to 13,609,147.24, 18,780,043.62 and 7,803,896.68
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Solution
The fourth proportional to 13,609,147.24, 18,780,043.62 and 7,803,896.68 is: 10,769,045.07
Step by Step Solution
- Step 1: Write the proportion equation
13,609,147.24 : 18,780,043.62 = 7,803,896.68 : x - Step 2: Convert to fraction form
13,609,147.24/18,780,043.62 = 7,803,896.68/x - Step 3: Cross multiply
13,609,147.24x = 18,780,043.62 × 7,803,896.68 - Step 4: Simplify right side
13,609,147.24x = 146,557,520,056,373.19 - Step 5: Solve for x
x = 146,557,520,056,373.19/13,609,147.24 - Step 6: Final answer
x = 10,769,045.07
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1.5x scale
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.