Finding the Fourth Proportional to 6,378,135.10, 8,805,408.16 and 4,420,857.58
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Solution
The fourth proportional to 6,378,135.10, 8,805,408.16 and 4,420,857.58 is: 6,103,266.05
Step by Step Solution
- Step 1: Write the proportion equation
6,378,135.10 : 8,805,408.16 = 4,420,857.58 : x - Step 2: Convert to fraction form
6,378,135.10/8,805,408.16 = 4,420,857.58/x - Step 3: Cross multiply
6,378,135.10x = 8,805,408.16 × 4,420,857.58 - Step 4: Simplify right side
6,378,135.10x = 38,927,455,409,129.85 - Step 5: Solve for x
x = 38,927,455,409,129.85/6,378,135.10 - Step 6: Final answer
x = 6,103,266.05
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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.