Finding the Fourth Proportional to 394,928,125.80, 592,392,188.70 and 201,217,881.30
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Solution
The fourth proportional to 394,928,125.80, 592,392,188.70 and 201,217,881.30 is: 301,826,821.95
Step by Step Solution
- Step 1: Write the proportion equation
394,928,125.80 : 592,392,188.70 = 201,217,881.30 : x - Step 2: Convert to fraction form
394,928,125.80/592,392,188.70 = 201,217,881.30/x - Step 3: Cross multiply
394,928,125.80x = 592,392,188.70 × 201,217,881.30 - Step 4: Simplify right side
394,928,125.80x = 119,199,901,108,883,824 - Step 5: Solve for x
x = 119,199,901,108,883,824/394,928,125.80 - Step 6: Final answer
x = 301,826,821.95
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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.