Finding the Fourth Proportional to 97,771,369.94, 135,043,855.20 and 73,100,965.29
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Solution
The fourth proportional to 97,771,369.94, 135,043,855.20 and 73,100,965.29 is: 100,968,577.79
Step by Step Solution
- Step 1: Write the proportion equation
97,771,369.94 : 135,043,855.20 = 73,100,965.29 : x - Step 2: Convert to fraction form
97,771,369.94/135,043,855.20 = 73,100,965.29/x - Step 3: Cross multiply
97,771,369.94x = 135,043,855.20 × 73,100,965.29 - Step 4: Simplify right side
97,771,369.94x = 9,871,836,171,602,986 - Step 5: Solve for x
x = 9,871,836,171,602,986/97,771,369.94 - Step 6: Final answer
x = 100,968,577.79
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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.