Finding the Fourth Proportional to 88,138,358.70, 132,078,456.45 and 79,040,438.70
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Solution
The fourth proportional to 88,138,358.70, 132,078,456.45 and 79,040,438.70 is: 118,444,900.66
Step by Step Solution
- Step 1: Write the proportion equation
88,138,358.70 : 132,078,456.45 = 79,040,438.70 : x - Step 2: Convert to fraction form
88,138,358.70/132,078,456.45 = 79,040,438.70/x - Step 3: Cross multiply
88,138,358.70x = 132,078,456.45 × 79,040,438.70 - Step 4: Simplify right side
88,138,358.70x = 10,439,539,140,626,846 - Step 5: Solve for x
x = 10,439,539,140,626,846/88,138,358.70 - Step 6: Final answer
x = 118,444,900.66
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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.