Finding the Fourth Proportional to 89,083,893.60, 133,625,840.40 and 74,734,986.60
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Solution
The fourth proportional to 89,083,893.60, 133,625,840.40 and 74,734,986.60 is: 112,102,479.90
Step by Step Solution
- Step 1: Write the proportion equation
89,083,893.60 : 133,625,840.40 = 74,734,986.60 : x - Step 2: Convert to fraction form
89,083,893.60/133,625,840.40 = 74,734,986.60/x - Step 3: Cross multiply
89,083,893.60x = 133,625,840.40 × 74,734,986.60 - Step 4: Simplify right side
89,083,893.60x = 9,986,525,391,707,738 - Step 5: Solve for x
x = 9,986,525,391,707,738/89,083,893.60 - Step 6: Final answer
x = 112,102,479.90
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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.