Finding the Fourth Proportional to 858,808,967,879.70, 1,288,213,451,819.50 and 293,484,990,330.90
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Solution
The fourth proportional to 858,808,967,879.70, 1,288,213,451,819.50 and 293,484,990,330.90 is: 440,227,485,496.33
Step by Step Solution
- Step 1: Write the proportion equation
858,808,967,879.70 : 1,288,213,451,819.50 = 293,484,990,330.90 : x - Step 2: Convert to fraction form
858,808,967,879.70/1,288,213,451,819.50 = 293,484,990,330.90/x - Step 3: Cross multiply
858,808,967,879.70x = 1,288,213,451,819.50 × 293,484,990,330.90 - Step 4: Simplify right side
858,808,967,879.70x = 378,071,312,451,381,284,044,800 - Step 5: Solve for x
x = 378,071,312,451,381,284,044,800/858,808,967,879.70 - Step 6: Final answer
x = 440,227,485,496.33
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1.5x scale
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.