Finding the Fourth Proportional to 456,729,163.32, 630,286,869.06 and 247,885,308.84
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Solution
The fourth proportional to 456,729,163.32, 630,286,869.06 and 247,885,308.84 is: 342,082,064.69
Step by Step Solution
- Step 1: Write the proportion equation
456,729,163.32 : 630,286,869.06 = 247,885,308.84 : x - Step 2: Convert to fraction form
456,729,163.32/630,286,869.06 = 247,885,308.84/x - Step 3: Cross multiply
456,729,163.32x = 630,286,869.06 × 247,885,308.84 - Step 4: Simplify right side
456,729,163.32x = 156,238,855,194,734,720 - Step 5: Solve for x
x = 156,238,855,194,734,720/456,729,163.32 - Step 6: Final answer
x = 342,082,064.69
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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.