Finding the Fourth Proportional to 7,646,831.96, 11,469,936.85 and 1,889,420.60
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Solution
The fourth proportional to 7,646,831.96, 11,469,936.85 and 1,889,420.60 is: 2,834,054.03
Step by Step Solution
- Step 1: Write the proportion equation
7,646,831.96 : 11,469,936.85 = 1,889,420.60 : x - Step 2: Convert to fraction form
7,646,831.96/11,469,936.85 = 1,889,420.60/x - Step 3: Cross multiply
7,646,831.96x = 11,469,936.85 × 1,889,420.60 - Step 4: Simplify right side
7,646,831.96x = 21,671,534,907,739.43 - Step 5: Solve for x
x = 21,671,534,907,739.43/7,646,831.96 - Step 6: Final answer
x = 2,834,054.03
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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.