Finding the Fourth Proportional to 245,358,531.28, 338,534,381.64 and 149,964,896.08
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Solution
The fourth proportional to 245,358,531.28, 338,534,381.64 and 149,964,896.08 is: 206,914,644.86
Step by Step Solution
- Step 1: Write the proportion equation
245,358,531.28 : 338,534,381.64 = 149,964,896.08 : x - Step 2: Convert to fraction form
245,358,531.28/338,534,381.64 = 149,964,896.08/x - Step 3: Cross multiply
245,358,531.28x = 338,534,381.64 × 149,964,896.08 - Step 4: Simplify right side
245,358,531.28x = 50,768,273,362,149,664 - Step 5: Solve for x
x = 50,768,273,362,149,664/245,358,531.28 - Step 6: Final answer
x = 206,914,644.86
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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.