Finding the Fourth Proportional to 88,138,352.70, 132,078,447.45 and 79,040,432.70
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Solution
The fourth proportional to 88,138,352.70, 132,078,447.45 and 79,040,432.70 is: 118,444,891.66
Step by Step Solution
- Step 1: Write the proportion equation
88,138,352.70 : 132,078,447.45 = 79,040,432.70 : x - Step 2: Convert to fraction form
88,138,352.70/132,078,447.45 = 79,040,432.70/x - Step 3: Cross multiply
88,138,352.70x = 132,078,447.45 × 79,040,432.70 - Step 4: Simplify right side
88,138,352.70x = 10,439,537,636,792,212 - Step 5: Solve for x
x = 10,439,537,636,792,212/88,138,352.70 - Step 6: Final answer
x = 118,444,891.66
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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.