Finding the Fourth Proportional to 7,212,337.62, 10,820,256.06 and 2,163,648.12
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Solution
The fourth proportional to 7,212,337.62, 10,820,256.06 and 2,163,648.12 is: 3,245,997.06
Step by Step Solution
- Step 1: Write the proportion equation
7,212,337.62 : 10,820,256.06 = 2,163,648.12 : x - Step 2: Convert to fraction form
7,212,337.62/10,820,256.06 = 2,163,648.12/x - Step 3: Cross multiply
7,212,337.62x = 10,820,256.06 × 2,163,648.12 - Step 4: Simplify right side
7,212,337.62x = 23,411,226,682,137.61 - Step 5: Solve for x
x = 23,411,226,682,137.61/7,212,337.62 - Step 6: Final answer
x = 3,245,997.06
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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.