Finding the Fourth Proportional to 155,072,195.94, 213,999,674.86 and 84,507,825.53
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Solution
The fourth proportional to 155,072,195.94, 213,999,674.86 and 84,507,825.53 is: 116,620,823.46
Step by Step Solution
- Step 1: Write the proportion equation
155,072,195.94 : 213,999,674.86 = 84,507,825.53 : x - Step 2: Convert to fraction form
155,072,195.94/213,999,674.86 = 84,507,825.53/x - Step 3: Cross multiply
155,072,195.94x = 213,999,674.86 × 84,507,825.53 - Step 4: Simplify right side
155,072,195.94x = 18,084,647,186,545,608 - Step 5: Solve for x
x = 18,084,647,186,545,608/155,072,195.94 - Step 6: Final answer
x = 116,620,823.46
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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.