Finding the Fourth Proportional to 8,729,877.64, 12,045,996.92 and 4,957,811.32
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Solution
The fourth proportional to 8,729,877.64, 12,045,996.92 and 4,957,811.32 is: 6,841,078.69
Step by Step Solution
- Step 1: Write the proportion equation
8,729,877.64 : 12,045,996.92 = 4,957,811.32 : x - Step 2: Convert to fraction form
8,729,877.64/12,045,996.92 = 4,957,811.32/x - Step 3: Cross multiply
8,729,877.64x = 12,045,996.92 × 4,957,811.32 - Step 4: Simplify right side
8,729,877.64x = 59,721,779,890,661.14 - Step 5: Solve for x
x = 59,721,779,890,661.14/8,729,877.64 - Step 6: Final answer
x = 6,841,078.69
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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.