Finding the Fourth Proportional to 682,717,033.86, 942,149,507.93 and 369,451,247.68
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Solution
The fourth proportional to 682,717,033.86, 942,149,507.93 and 369,451,247.68 is: 509,842,722.45
Step by Step Solution
- Step 1: Write the proportion equation
682,717,033.86 : 942,149,507.93 = 369,451,247.68 : x - Step 2: Convert to fraction form
682,717,033.86/942,149,507.93 = 369,451,247.68/x - Step 3: Cross multiply
682,717,033.86x = 942,149,507.93 × 369,451,247.68 - Step 4: Simplify right side
682,717,033.86x = 348,078,311,205,836,544 - Step 5: Solve for x
x = 348,078,311,205,836,544/682,717,033.86 - Step 6: Final answer
x = 509,842,722.45
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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.