Finding the Fourth Proportional to 629,857,473.10, 944,786,209.65 and 307,371,201.10
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Solution
The fourth proportional to 629,857,473.10, 944,786,209.65 and 307,371,201.10 is: 461,056,801.65
Step by Step Solution
- Step 1: Write the proportion equation
629,857,473.10 : 944,786,209.65 = 307,371,201.10 : x - Step 2: Convert to fraction form
629,857,473.10/944,786,209.65 = 307,371,201.10/x - Step 3: Cross multiply
629,857,473.10x = 944,786,209.65 × 307,371,201.10 - Step 4: Simplify right side
629,857,473.10x = 290,400,072,042,836,928 - Step 5: Solve for x
x = 290,400,072,042,836,928/629,857,473.10 - Step 6: Final answer
x = 461,056,801.65
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Double scale
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Similar ratio
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1.5x scale
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.