Finding the Fourth Proportional to 7,775,998.20, 11,663,997.30 and 6,544,279.80
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Solution
The fourth proportional to 7,775,998.20, 11,663,997.30 and 6,544,279.80 is: 9,816,419.70
Step by Step Solution
- Step 1: Write the proportion equation
7,775,998.20 : 11,663,997.30 = 6,544,279.80 : x - Step 2: Convert to fraction form
7,775,998.20/11,663,997.30 = 6,544,279.80/x - Step 3: Cross multiply
7,775,998.20x = 11,663,997.30 × 6,544,279.80 - Step 4: Simplify right side
7,775,998.20x = 76,332,461,917,644.55 - Step 5: Solve for x
x = 76,332,461,917,644.55/7,775,998.20 - Step 6: Final answer
x = 9,816,419.70
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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.