Finding the Fourth Proportional to 7,430,674.20, 11,146,011.30 and 6,686,656.80
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Solution
The fourth proportional to 7,430,674.20, 11,146,011.30 and 6,686,656.80 is: 10,029,985.20
Step by Step Solution
- Step 1: Write the proportion equation
7,430,674.20 : 11,146,011.30 = 6,686,656.80 : x - Step 2: Convert to fraction form
7,430,674.20/11,146,011.30 = 6,686,656.80/x - Step 3: Cross multiply
7,430,674.20x = 11,146,011.30 × 6,686,656.80 - Step 4: Simplify right side
7,430,674.20x = 74,529,552,252,021.84 - Step 5: Solve for x
x = 74,529,552,252,021.84/7,430,674.20 - Step 6: Final answer
x = 10,029,985.20
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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.