Finding the Fourth Proportional to 329,768,117.80, 494,652,176.70 and 214,976,861.80
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Solution
The fourth proportional to 329,768,117.80, 494,652,176.70 and 214,976,861.80 is: 322,465,292.70
Step by Step Solution
- Step 1: Write the proportion equation
329,768,117.80 : 494,652,176.70 = 214,976,861.80 : x - Step 2: Convert to fraction form
329,768,117.80/494,652,176.70 = 214,976,861.80/x - Step 3: Cross multiply
329,768,117.80x = 494,652,176.70 × 214,976,861.80 - Step 4: Simplify right side
329,768,117.80x = 106,338,772,629,505,088 - Step 5: Solve for x
x = 106,338,772,629,505,088/329,768,117.80 - Step 6: Final answer
x = 322,465,292.70
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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.