Finding the Fourth Proportional to 682,717,009.65, 942,149,474.36 and 369,451,223.50
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Solution
The fourth proportional to 682,717,009.65, 942,149,474.36 and 369,451,223.50 is: 509,842,688.99
Step by Step Solution
- Step 1: Write the proportion equation
682,717,009.65 : 942,149,474.36 = 369,451,223.50 : x - Step 2: Convert to fraction form
682,717,009.65/942,149,474.36 = 369,451,223.50/x - Step 3: Cross multiply
682,717,009.65x = 942,149,474.36 × 369,451,223.50 - Step 4: Simplify right side
682,717,009.65x = 348,078,276,022,183,872 - Step 5: Solve for x
x = 348,078,276,022,183,872/682,717,009.65 - Step 6: Final answer
x = 509,842,688.99
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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.