Finding the Fourth Proportional to 61,207,405.80, 91,811,108.70 and 53,235,790.80
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Solution
The fourth proportional to 61,207,405.80, 91,811,108.70 and 53,235,790.80 is: 79,853,686.20
Step by Step Solution
- Step 1: Write the proportion equation
61,207,405.80 : 91,811,108.70 = 53,235,790.80 : x - Step 2: Convert to fraction form
61,207,405.80/91,811,108.70 = 53,235,790.80/x - Step 3: Cross multiply
61,207,405.80x = 91,811,108.70 × 53,235,790.80 - Step 4: Simplify right side
61,207,405.80x = 4,887,636,975,869,260 - Step 5: Solve for x
x = 4,887,636,975,869,260/61,207,405.80 - Step 6: Final answer
x = 79,853,686.20
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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.