Finding the Fourth Proportional to 104,553,139.80, 156,829,709.70 and 53,418,163.80
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Solution
The fourth proportional to 104,553,139.80, 156,829,709.70 and 53,418,163.80 is: 80,127,245.70
Step by Step Solution
- Step 1: Write the proportion equation
104,553,139.80 : 156,829,709.70 = 53,418,163.80 : x - Step 2: Convert to fraction form
104,553,139.80/156,829,709.70 = 53,418,163.80/x - Step 3: Cross multiply
104,553,139.80x = 156,829,709.70 × 53,418,163.80 - Step 4: Simplify right side
104,553,139.80x = 8,377,555,121,461,048 - Step 5: Solve for x
x = 8,377,555,121,461,048/104,553,139.80 - Step 6: Final answer
x = 80,127,245.70
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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.