Finding the Fourth Proportional to 98,537,172.56, 135,975,455.52 and 54,480,713.60
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Solution
The fourth proportional to 98,537,172.56, 135,975,455.52 and 54,480,713.60 is: 75,180,154.42
Step by Step Solution
- Step 1: Write the proportion equation
98,537,172.56 : 135,975,455.52 = 54,480,713.60 : x - Step 2: Convert to fraction form
98,537,172.56/135,975,455.52 = 54,480,713.60/x - Step 3: Cross multiply
98,537,172.56x = 135,975,455.52 × 54,480,713.60 - Step 4: Simplify right side
98,537,172.56x = 7,408,039,848,814,660 - Step 5: Solve for x
x = 7,408,039,848,814,660/98,537,172.56 - Step 6: Final answer
x = 75,180,154.42
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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.