Finding the Fourth Proportional to 9,405,661.68, 14,103,156.24 and 8,603,207.64
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Solution
The fourth proportional to 9,405,661.68, 14,103,156.24 and 8,603,207.64 is: 12,899,930.45
Step by Step Solution
- Step 1: Write the proportion equation
9,405,661.68 : 14,103,156.24 = 8,603,207.64 : x - Step 2: Convert to fraction form
9,405,661.68/14,103,156.24 = 8,603,207.64/x - Step 3: Cross multiply
9,405,661.68x = 14,103,156.24 × 8,603,207.64 - Step 4: Simplify right side
9,405,661.68x = 121,332,381,512,081.69 - Step 5: Solve for x
x = 121,332,381,512,081.69/9,405,661.68 - Step 6: Final answer
x = 12,899,930.45
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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.