Finding the Fourth Proportional to 13,320,587.14, 18,380,444.86 and 7,811,882.24
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Solution
The fourth proportional to 13,320,587.14, 18,380,444.86 and 7,811,882.24 is: 10,779,244.88
Step by Step Solution
- Step 1: Write the proportion equation
13,320,587.14 : 18,380,444.86 = 7,811,882.24 : x - Step 2: Convert to fraction form
13,320,587.14/18,380,444.86 = 7,811,882.24/x - Step 3: Cross multiply
13,320,587.14x = 18,380,444.86 × 7,811,882.24 - Step 4: Simplify right side
13,320,587.14x = 143,585,870,765,133.28 - Step 5: Solve for x
x = 143,585,870,765,133.28/13,320,587.14 - Step 6: Final answer
x = 10,779,244.88
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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.