Finding the Fourth Proportional to 386,723,612.70, 579,235,113.45 and 335,705,276.70
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Solution
The fourth proportional to 386,723,612.70, 579,235,113.45 and 335,705,276.70 is: 502,819,785.63
Step by Step Solution
- Step 1: Write the proportion equation
386,723,612.70 : 579,235,113.45 = 335,705,276.70 : x - Step 2: Convert to fraction form
386,723,612.70/579,235,113.45 = 335,705,276.70/x - Step 3: Cross multiply
386,723,612.70x = 579,235,113.45 × 335,705,276.70 - Step 4: Simplify right side
386,723,612.70x = 194,452,284,035,088,160 - Step 5: Solve for x
x = 194,452,284,035,088,160/386,723,612.70 - Step 6: Final answer
x = 502,819,785.63
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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.