Finding the Fourth Proportional to 405,279,550.96, 559,560,325.56 and 256,732,494.28
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Solution
The fourth proportional to 405,279,550.96, 559,560,325.56 and 256,732,494.28 is: 354,464,758.32
Step by Step Solution
- Step 1: Write the proportion equation
405,279,550.96 : 559,560,325.56 = 256,732,494.28 : x - Step 2: Convert to fraction form
405,279,550.96/559,560,325.56 = 256,732,494.28/x - Step 3: Cross multiply
405,279,550.96x = 559,560,325.56 × 256,732,494.28 - Step 4: Simplify right side
405,279,550.96x = 143,657,318,081,147,616 - Step 5: Solve for x
x = 143,657,318,081,147,616/405,279,550.96 - Step 6: Final answer
x = 354,464,758.32
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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.