Finding the Fourth Proportional to 75,026,178.21, 112,523,520.92 and 21,160,893.09
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Solution
The fourth proportional to 75,026,178.21, 112,523,520.92 and 21,160,893.09 is: 31,736,898.42
Step by Step Solution
- Step 1: Write the proportion equation
75,026,178.21 : 112,523,520.92 = 21,160,893.09 : x - Step 2: Convert to fraction form
75,026,178.21/112,523,520.92 = 21,160,893.09/x - Step 3: Cross multiply
75,026,178.21x = 112,523,520.92 × 21,160,893.09 - Step 4: Simplify right side
75,026,178.21x = 2,381,098,196,733,793 - Step 5: Solve for x
x = 2,381,098,196,733,793/75,026,178.21 - Step 6: Final answer
x = 31,736,898.42
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.