Finding the Fourth Proportional to 256,590,688.88, 354,102,618.87 and 145,079,134.29
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Solution
The fourth proportional to 256,590,688.88, 354,102,618.87 and 145,079,134.29 is: 200,213,427.93
Step by Step Solution
- Step 1: Write the proportion equation
256,590,688.88 : 354,102,618.87 = 145,079,134.29 : x - Step 2: Convert to fraction form
256,590,688.88/354,102,618.87 = 145,079,134.29/x - Step 3: Cross multiply
256,590,688.88x = 354,102,618.87 × 145,079,134.29 - Step 4: Simplify right side
256,590,688.88x = 51,372,901,395,481,416 - Step 5: Solve for x
x = 51,372,901,395,481,416/256,590,688.88 - Step 6: Final answer
x = 200,213,427.93
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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.