Finding the Fourth Proportional to 608,972,189.76, 840,382,453.44 and 330,513,717.12
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Solution
The fourth proportional to 608,972,189.76, 840,382,453.44 and 330,513,717.12 is: 456,109,380.95
Step by Step Solution
- Step 1: Write the proportion equation
608,972,189.76 : 840,382,453.44 = 330,513,717.12 : x - Step 2: Convert to fraction form
608,972,189.76/840,382,453.44 = 330,513,717.12/x - Step 3: Cross multiply
608,972,189.76x = 840,382,453.44 × 330,513,717.12 - Step 4: Simplify right side
608,972,189.76x = 277,757,928,488,879,744 - Step 5: Solve for x
x = 277,757,928,488,879,744/608,972,189.76 - Step 6: Final answer
x = 456,109,380.95
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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.