Finding the Fourth Proportional to 177,412,920.40, 266,119,380.60 and 129,637,176.40
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Solution
The fourth proportional to 177,412,920.40, 266,119,380.60 and 129,637,176.40 is: 194,455,764.60
Step by Step Solution
- Step 1: Write the proportion equation
177,412,920.40 : 266,119,380.60 = 129,637,176.40 : x - Step 2: Convert to fraction form
177,412,920.40/266,119,380.60 = 129,637,176.40/x - Step 3: Cross multiply
177,412,920.40x = 266,119,380.60 × 129,637,176.40 - Step 4: Simplify right side
177,412,920.40x = 34,498,965,086,300,940 - Step 5: Solve for x
x = 34,498,965,086,300,940/177,412,920.40 - Step 6: Final answer
x = 194,455,764.60
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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.