Finding the Fourth Proportional to 7,762,913.74, 11,629,446.50 and 4,340,821.18
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Solution
The fourth proportional to 7,762,913.74, 11,629,446.50 and 4,340,821.18 is: 6,502,886.59
Step by Step Solution
- Step 1: Write the proportion equation
7,762,913.74 : 11,629,446.50 = 4,340,821.18 : x - Step 2: Convert to fraction form
7,762,913.74/11,629,446.50 = 4,340,821.18/x - Step 3: Cross multiply
7,762,913.74x = 11,629,446.50 × 4,340,821.18 - Step 4: Simplify right side
7,762,913.74x = 50,481,347,678,876.87 - Step 5: Solve for x
x = 50,481,347,678,876.87/7,762,913.74 - Step 6: Final answer
x = 6,502,886.59
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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.