Finding the Fourth Proportional to 144,071,134.26, 198,817,936.56 and 77,991,615.06
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Solution
The fourth proportional to 144,071,134.26, 198,817,936.56 and 77,991,615.06 is: 107,628,304.97
Step by Step Solution
- Step 1: Write the proportion equation
144,071,134.26 : 198,817,936.56 = 77,991,615.06 : x - Step 2: Convert to fraction form
144,071,134.26/198,817,936.56 = 77,991,615.06/x - Step 3: Cross multiply
144,071,134.26x = 198,817,936.56 × 77,991,615.06 - Step 4: Simplify right side
144,071,134.26x = 15,506,131,975,211,022 - Step 5: Solve for x
x = 15,506,131,975,211,022/144,071,134.26 - Step 6: Final answer
x = 107,628,304.97
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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.