Finding the Fourth Proportional to 203,571,734.68, 305,218,198.91 and 103,667,992.08
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Solution
The fourth proportional to 203,571,734.68, 305,218,198.91 and 103,667,992.08 is: 155,430,997.71
Step by Step Solution
- Step 1: Write the proportion equation
203,571,734.68 : 305,218,198.91 = 103,667,992.08 : x - Step 2: Convert to fraction form
203,571,734.68/305,218,198.91 = 103,667,992.08/x - Step 3: Cross multiply
203,571,734.68x = 305,218,198.91 × 103,667,992.08 - Step 4: Simplify right side
203,571,734.68x = 31,641,357,826,570,348 - Step 5: Solve for x
x = 31,641,357,826,570,348/203,571,734.68 - Step 6: Final answer
x = 155,430,997.71
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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.