Finding the Fourth Proportional to 487,640,202,299.07, 672,791,659,669.77 and 281,799,451,516.07
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Solution
The fourth proportional to 487,640,202,299.07, 672,791,659,669.77 and 281,799,451,516.07 is: 388,795,509,036.50
Step by Step Solution
- Step 1: Write the proportion equation
487,640,202,299.07 : 672,791,659,669.77 = 281,799,451,516.07 : x - Step 2: Convert to fraction form
487,640,202,299.07/672,791,659,669.77 = 281,799,451,516.07/x - Step 3: Cross multiply
487,640,202,299.07x = 672,791,659,669.77 × 281,799,451,516.07 - Step 4: Simplify right side
487,640,202,299.07x = 189,592,320,679,527,621,591,040 - Step 5: Solve for x
x = 189,592,320,679,527,621,591,040/487,640,202,299.07 - Step 6: Final answer
x = 388,795,509,036.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.