Finding the Fourth Proportional to 7,587,115.20, 11,380,672.80 and 6,789,953.70
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Solution
The fourth proportional to 7,587,115.20, 11,380,672.80 and 6,789,953.70 is: 10,184,930.55
Step by Step Solution
- Step 1: Write the proportion equation
7,587,115.20 : 11,380,672.80 = 6,789,953.70 : x - Step 2: Convert to fraction form
7,587,115.20/11,380,672.80 = 6,789,953.70/x - Step 3: Cross multiply
7,587,115.20x = 11,380,672.80 × 6,789,953.70 - Step 4: Simplify right side
7,587,115.20x = 77,274,241,386,849.36 - Step 5: Solve for x
x = 77,274,241,386,849.36/7,587,115.20 - Step 6: Final answer
x = 10,184,930.55
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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.