Finding the Fourth Proportional to 14,935,702.14, 20,609,565.31 and 8,409,163.78
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Solution
The fourth proportional to 14,935,702.14, 20,609,565.31 and 8,409,163.78 is: 11,603,686.82
Step by Step Solution
- Step 1: Write the proportion equation
14,935,702.14 : 20,609,565.31 = 8,409,163.78 : x - Step 2: Convert to fraction form
14,935,702.14/20,609,565.31 = 8,409,163.78/x - Step 3: Cross multiply
14,935,702.14x = 20,609,565.31 × 8,409,163.78 - Step 4: Simplify right side
14,935,702.14x = 173,309,210,126,396.44 - Step 5: Solve for x
x = 173,309,210,126,396.44/14,935,702.14 - Step 6: Final answer
x = 11,603,686.82
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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.