Finding the Fourth Proportional to 7,461,748.20, 11,192,622.30 and 6,579,949.80
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Solution
The fourth proportional to 7,461,748.20, 11,192,622.30 and 6,579,949.80 is: 9,869,924.70
Step by Step Solution
- Step 1: Write the proportion equation
7,461,748.20 : 11,192,622.30 = 6,579,949.80 : x - Step 2: Convert to fraction form
7,461,748.20/11,192,622.30 = 6,579,949.80/x - Step 3: Cross multiply
7,461,748.20x = 11,192,622.30 × 6,579,949.80 - Step 4: Simplify right side
7,461,748.20x = 73,646,892,864,360.55 - Step 5: Solve for x
x = 73,646,892,864,360.55/7,461,748.20 - Step 6: Final answer
x = 9,869,924.70
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Double scale
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Similar ratio
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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.