Finding the Fourth Proportional to 351,783,902.72, 485,519,981.88 and 195,201,455.09
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Solution
The fourth proportional to 351,783,902.72, 485,519,981.88 and 195,201,455.09 is: 269,410,300.48
Step by Step Solution
- Step 1: Write the proportion equation
351,783,902.72 : 485,519,981.88 = 195,201,455.09 : x - Step 2: Convert to fraction form
351,783,902.72/485,519,981.88 = 195,201,455.09/x - Step 3: Cross multiply
351,783,902.72x = 485,519,981.88 × 195,201,455.09 - Step 4: Simplify right side
351,783,902.72x = 94,774,206,936,550,848 - Step 5: Solve for x
x = 94,774,206,936,550,848/351,783,902.72 - Step 6: Final answer
x = 269,410,300.48
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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.