Finding the Fourth Proportional to 398,617,869.20, 597,926,803.80 and 223,561,203.80
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Solution
The fourth proportional to 398,617,869.20, 597,926,803.80 and 223,561,203.80 is: 335,341,805.70
Step by Step Solution
- Step 1: Write the proportion equation
398,617,869.20 : 597,926,803.80 = 223,561,203.80 : x - Step 2: Convert to fraction form
398,617,869.20/597,926,803.80 = 223,561,203.80/x - Step 3: Cross multiply
398,617,869.20x = 597,926,803.80 × 223,561,203.80 - Step 4: Simplify right side
398,617,869.20x = 133,673,236,041,814,416 - Step 5: Solve for x
x = 133,673,236,041,814,416/398,617,869.20 - Step 6: Final answer
x = 335,341,805.70
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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.