Finding the Fourth Proportional to 47,689,237.80, 71,543,187.90 and 20,395,477.80
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Solution
The fourth proportional to 47,689,237.80, 71,543,187.90 and 20,395,477.80 is: 30,597,207.42
Step by Step Solution
- Step 1: Write the proportion equation
47,689,237.80 : 71,543,187.90 = 20,395,477.80 : x - Step 2: Convert to fraction form
47,689,237.80/71,543,187.90 = 20,395,477.80/x - Step 3: Cross multiply
47,689,237.80x = 71,543,187.90 × 20,395,477.80 - Step 4: Simplify right side
47,689,237.80x = 1,459,157,500,555,678.75 - Step 5: Solve for x
x = 1,459,157,500,555,678.75/47,689,237.80 - Step 6: Final answer
x = 30,597,207.42
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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.