Finding the Fourth Proportional to 246,138,428.12, 339,775,618.39 and 153,364,772.75
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Solution
The fourth proportional to 246,138,428.12, 339,775,618.39 and 153,364,772.75 is: 211,708,553.18
Step by Step Solution
- Step 1: Write the proportion equation
246,138,428.12 : 339,775,618.39 = 153,364,772.75 : x - Step 2: Convert to fraction form
246,138,428.12/339,775,618.39 = 153,364,772.75/x - Step 3: Cross multiply
246,138,428.12x = 339,775,618.39 × 153,364,772.75 - Step 4: Simplify right side
246,138,428.12x = 52,109,610,498,290,784 - Step 5: Solve for x
x = 52,109,610,498,290,784/246,138,428.12 - Step 6: Final answer
x = 211,708,553.18
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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.