Finding the Fourth Proportional to 110,639,260.80, 165,958,891.20 and 53,243,632.80
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Solution
The fourth proportional to 110,639,260.80, 165,958,891.20 and 53,243,632.80 is: 79,865,449.20
Step by Step Solution
- Step 1: Write the proportion equation
110,639,260.80 : 165,958,891.20 = 53,243,632.80 : x - Step 2: Convert to fraction form
110,639,260.80/165,958,891.20 = 53,243,632.80/x - Step 3: Cross multiply
110,639,260.80x = 165,958,891.20 × 53,243,632.80 - Step 4: Simplify right side
110,639,260.80x = 8,836,254,262,947,950 - Step 5: Solve for x
x = 8,836,254,262,947,950/110,639,260.80 - Step 6: Final answer
x = 79,865,449.20
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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.