Finding the Fourth Proportional to 117,468,538.05, 176,202,807.08 and 87,235,450.05
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Solution
The fourth proportional to 117,468,538.05, 176,202,807.08 and 87,235,450.05 is: 130,853,175.08
Step by Step Solution
- Step 1: Write the proportion equation
117,468,538.05 : 176,202,807.08 = 87,235,450.05 : x - Step 2: Convert to fraction form
117,468,538.05/176,202,807.08 = 87,235,450.05/x - Step 3: Cross multiply
117,468,538.05x = 176,202,807.08 × 87,235,450.05 - Step 4: Simplify right side
117,468,538.05x = 15,371,131,175,260,948 - Step 5: Solve for x
x = 15,371,131,175,260,948/117,468,538.05 - Step 6: Final answer
x = 130,853,175.08
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1.5x scale
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.