Finding the Fourth Proportional to 398,617,575.20, 597,926,362.80 and 223,560,909.80
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Solution
The fourth proportional to 398,617,575.20, 597,926,362.80 and 223,560,909.80 is: 335,341,364.70
Step by Step Solution
- Step 1: Write the proportion equation
398,617,575.20 : 597,926,362.80 = 223,560,909.80 : x - Step 2: Convert to fraction form
398,617,575.20/597,926,362.80 = 223,560,909.80/x - Step 3: Cross multiply
398,617,575.20x = 597,926,362.80 × 223,560,909.80 - Step 4: Simplify right side
398,617,575.20x = 133,672,961,660,972,864 - Step 5: Solve for x
x = 133,672,961,660,972,864/398,617,575.20 - Step 6: Final answer
x = 335,341,364.70
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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.