Finding the Fourth Proportional to 125,420,997.36, 188,133,386.76 and 43,542,475.44
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Solution
The fourth proportional to 125,420,997.36, 188,133,386.76 and 43,542,475.44 is: 65,314,369.56
Step by Step Solution
- Step 1: Write the proportion equation
125,420,997.36 : 188,133,386.76 = 43,542,475.44 : x - Step 2: Convert to fraction form
125,420,997.36/188,133,386.76 = 43,542,475.44/x - Step 3: Cross multiply
125,420,997.36x = 188,133,386.76 × 43,542,475.44 - Step 4: Simplify right side
125,420,997.36x = 8,191,793,372,441,320 - Step 5: Solve for x
x = 8,191,793,372,441,320/125,420,997.36 - Step 6: Final answer
x = 65,314,369.56
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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.