Finding the Fourth Proportional to 15,421,286.05, 23,132,567.86 and 12,720,581.62
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Solution
The fourth proportional to 15,421,286.05, 23,132,567.86 and 12,720,581.62 is: 19,081,399.34
Step by Step Solution
- Step 1: Write the proportion equation
15,421,286.05 : 23,132,567.86 = 12,720,581.62 : x - Step 2: Convert to fraction form
15,421,286.05/23,132,567.86 = 12,720,581.62/x - Step 3: Cross multiply
15,421,286.05x = 23,132,567.86 × 12,720,581.62 - Step 4: Simplify right side
15,421,286.05x = 294,259,717,453,685.88 - Step 5: Solve for x
x = 294,259,717,453,685.88/15,421,286.05 - Step 6: Final answer
x = 19,081,399.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.