Finding the Fourth Proportional to 664,332,705.20, 996,499,057.80 and 276,026,481.20
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Solution
The fourth proportional to 664,332,705.20, 996,499,057.80 and 276,026,481.20 is: 414,039,721.80
Step by Step Solution
- Step 1: Write the proportion equation
664,332,705.20 : 996,499,057.80 = 276,026,481.20 : x - Step 2: Convert to fraction form
664,332,705.20/996,499,057.80 = 276,026,481.20/x - Step 3: Cross multiply
664,332,705.20x = 996,499,057.80 × 276,026,481.20 - Step 4: Simplify right side
664,332,705.20x = 275,060,128,443,649,376 - Step 5: Solve for x
x = 275,060,128,443,649,376/664,332,705.20 - Step 6: Final answer
x = 414,039,721.80
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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.