Finding the Fourth Proportional to 74,748,682.40, 112,123,023.60 and 48,920,649.80
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Solution
The fourth proportional to 74,748,682.40, 112,123,023.60 and 48,920,649.80 is: 73,380,974.70
Step by Step Solution
- Step 1: Write the proportion equation
74,748,682.40 : 112,123,023.60 = 48,920,649.80 : x - Step 2: Convert to fraction form
74,748,682.40/112,123,023.60 = 48,920,649.80/x - Step 3: Cross multiply
74,748,682.40x = 112,123,023.60 × 48,920,649.80 - Step 4: Simplify right side
74,748,682.40x = 5,485,131,172,052,735 - Step 5: Solve for x
x = 5,485,131,172,052,735/74,748,682.40 - Step 6: Final answer
x = 73,380,974.70
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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.