Finding the Fourth Proportional to 85,982,724.99, 118,650,785.72 and 47,351,556.99
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Solution
The fourth proportional to 85,982,724.99, 118,650,785.72 and 47,351,556.99 is: 65,342,188.71
Step by Step Solution
- Step 1: Write the proportion equation
85,982,724.99 : 118,650,785.72 = 47,351,556.99 : x - Step 2: Convert to fraction form
85,982,724.99/118,650,785.72 = 47,351,556.99/x - Step 3: Cross multiply
85,982,724.99x = 118,650,785.72 × 47,351,556.99 - Step 4: Simplify right side
85,982,724.99x = 5,618,299,441,692,101 - Step 5: Solve for x
x = 5,618,299,441,692,101/85,982,724.99 - Step 6: Final answer
x = 65,342,188.71
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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.