Finding the Fourth Proportional to 5,378,360.92, 7,421,873.67 and 2,930,964.55
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Solution
The fourth proportional to 5,378,360.92, 7,421,873.67 and 2,930,964.55 is: 4,044,586.99
Step by Step Solution
- Step 1: Write the proportion equation
5,378,360.92 : 7,421,873.67 = 2,930,964.55 : x - Step 2: Convert to fraction form
5,378,360.92/7,421,873.67 = 2,930,964.55/x - Step 3: Cross multiply
5,378,360.92x = 7,421,873.67 × 2,930,964.55 - Step 4: Simplify right side
5,378,360.92x = 21,753,248,602,793.71 - Step 5: Solve for x
x = 21,753,248,602,793.71/5,378,360.92 - Step 6: Final answer
x = 4,044,586.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.