Finding the Fourth Proportional to 11,237,213.70, 16,855,820.55 and 8,367,432.30
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Solution
The fourth proportional to 11,237,213.70, 16,855,820.55 and 8,367,432.30 is: 12,551,148.45
Step by Step Solution
- Step 1: Write the proportion equation
11,237,213.70 : 16,855,820.55 = 8,367,432.30 : x - Step 2: Convert to fraction form
11,237,213.70/16,855,820.55 = 8,367,432.30/x - Step 3: Cross multiply
11,237,213.70x = 16,855,820.55 × 8,367,432.30 - Step 4: Simplify right side
11,237,213.70x = 141,039,937,313,073.78 - Step 5: Solve for x
x = 141,039,937,313,073.78/11,237,213.70 - Step 6: Final answer
x = 12,551,148.45
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1.5x scale
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.