Finding the Fourth Proportional to 980,236,208.63, 1,470,788,516.82 and 513,786,778.80
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Solution
The fourth proportional to 980,236,208.63, 1,470,788,516.82 and 513,786,778.80 is: 770,907,754.37
Step by Step Solution
- Step 1: Write the proportion equation
980,236,208.63 : 1,470,788,516.82 = 513,786,778.80 : x - Step 2: Convert to fraction form
980,236,208.63/1,470,788,516.82 = 513,786,778.80/x - Step 3: Cross multiply
980,236,208.63x = 1,470,788,516.82 × 513,786,778.80 - Step 4: Simplify right side
980,236,208.63x = 755,671,694,343,054,592 - Step 5: Solve for x
x = 755,671,694,343,054,592/980,236,208.63 - Step 6: Final answer
x = 770,907,754.37
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Double scale
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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.