Finding the Fourth Proportional to 68,654,372.21, 94,652,879.85 and 49,542,899.13
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Solution
The fourth proportional to 68,654,372.21, 94,652,879.85 and 49,542,899.13 is: 68,304,143.32
Step by Step Solution
- Step 1: Write the proportion equation
68,654,372.21 : 94,652,879.85 = 49,542,899.13 : x - Step 2: Convert to fraction form
68,654,372.21/94,652,879.85 = 49,542,899.13/x - Step 3: Cross multiply
68,654,372.21x = 94,652,879.85 × 49,542,899.13 - Step 4: Simplify right side
68,654,372.21x = 4,689,378,079,127,507 - Step 5: Solve for x
x = 4,689,378,079,127,507/68,654,372.21 - Step 6: Final answer
x = 68,304,143.32
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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.