Finding the Fourth Proportional to 394,892,457.70, 592,338,686.55 and 280,101,201.70
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Solution
The fourth proportional to 394,892,457.70, 592,338,686.55 and 280,101,201.70 is: 420,151,802.55
Step by Step Solution
- Step 1: Write the proportion equation
394,892,457.70 : 592,338,686.55 = 280,101,201.70 : x - Step 2: Convert to fraction form
394,892,457.70/592,338,686.55 = 280,101,201.70/x - Step 3: Cross multiply
394,892,457.70x = 592,338,686.55 × 280,101,201.70 - Step 4: Simplify right side
394,892,457.70x = 165,914,777,916,054,592 - Step 5: Solve for x
x = 165,914,777,916,054,592/394,892,457.70 - Step 6: Final answer
x = 420,151,802.55
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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.