Finding the Fourth Proportional to 54,396,987.45, 81,595,481.18 and 51,205,717.05
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Solution
The fourth proportional to 54,396,987.45, 81,595,481.18 and 51,205,717.05 is: 76,808,575.58
Step by Step Solution
- Step 1: Write the proportion equation
54,396,987.45 : 81,595,481.18 = 51,205,717.05 : x - Step 2: Convert to fraction form
54,396,987.45/81,595,481.18 = 51,205,717.05/x - Step 3: Cross multiply
54,396,987.45x = 81,595,481.18 × 51,205,717.05 - Step 4: Simplify right side
54,396,987.45x = 4,178,155,121,605,651 - Step 5: Solve for x
x = 4,178,155,121,605,651/54,396,987.45 - Step 6: Final answer
x = 76,808,575.58
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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.