Finding the Fourth Proportional to 5,091,421.70, 7,026,414.17 and 3,158,305.13
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Solution
The fourth proportional to 5,091,421.70, 7,026,414.17 and 3,158,305.13 is: 4,358,617.53
Step by Step Solution
- Step 1: Write the proportion equation
5,091,421.70 : 7,026,414.17 = 3,158,305.13 : x - Step 2: Convert to fraction form
5,091,421.70/7,026,414.17 = 3,158,305.13/x - Step 3: Cross multiply
5,091,421.70x = 7,026,414.17 × 3,158,305.13 - Step 4: Simplify right side
5,091,421.70x = 22,191,559,867,692.10 - Step 5: Solve for x
x = 22,191,559,867,692.10/5,091,421.70 - Step 6: Final answer
x = 4,358,617.53
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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.