Finding the Fourth Proportional to 86,923,362.87, 119,955,195.50 and 47,765,149.74
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Solution
The fourth proportional to 86,923,362.87, 119,955,195.50 and 47,765,149.74 is: 65,916,431.28
Step by Step Solution
- Step 1: Write the proportion equation
86,923,362.87 : 119,955,195.50 = 47,765,149.74 : x - Step 2: Convert to fraction form
86,923,362.87/119,955,195.50 = 47,765,149.74/x - Step 3: Cross multiply
86,923,362.87x = 119,955,195.50 × 47,765,149.74 - Step 4: Simplify right side
86,923,362.87x = 5,729,677,874,909,649 - Step 5: Solve for x
x = 5,729,677,874,909,649/86,923,362.87 - Step 6: Final answer
x = 65,916,431.28
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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.