Finding the Fourth Proportional to 11,656,893.20, 16,086,528.11 and 6,429,784.14
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Solution
The fourth proportional to 11,656,893.20, 16,086,528.11 and 6,429,784.14 is: 8,873,110.66
Step by Step Solution
- Step 1: Write the proportion equation
11,656,893.20 : 16,086,528.11 = 6,429,784.14 : x - Step 2: Convert to fraction form
11,656,893.20/16,086,528.11 = 6,429,784.14/x - Step 3: Cross multiply
11,656,893.20x = 16,086,528.11 × 6,429,784.14 - Step 4: Simplify right side
11,656,893.20x = 103,432,903,277,193.25 - Step 5: Solve for x
x = 103,432,903,277,193.25/11,656,893.20 - Step 6: Final answer
x = 8,873,110.66
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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.