Finding the Fourth Proportional to 80,496,553.20, 120,744,829.80 and 26,643,865.20
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Solution
The fourth proportional to 80,496,553.20, 120,744,829.80 and 26,643,865.20 is: 39,965,797.80
Step by Step Solution
- Step 1: Write the proportion equation
80,496,553.20 : 120,744,829.80 = 26,643,865.20 : x - Step 2: Convert to fraction form
80,496,553.20/120,744,829.80 = 26,643,865.20/x - Step 3: Cross multiply
80,496,553.20x = 120,744,829.80 × 26,643,865.20 - Step 4: Simplify right side
80,496,553.20x = 3,217,108,968,788,143 - Step 5: Solve for x
x = 3,217,108,968,788,143/80,496,553.20 - Step 6: Final answer
x = 39,965,797.80
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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.