Finding the Fourth Proportional to 117,468,340.80, 176,202,511.20 and 87,235,252.80
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Solution
The fourth proportional to 117,468,340.80, 176,202,511.20 and 87,235,252.80 is: 130,852,879.20
Step by Step Solution
- Step 1: Write the proportion equation
117,468,340.80 : 176,202,511.20 = 87,235,252.80 : x - Step 2: Convert to fraction form
117,468,340.80/176,202,511.20 = 87,235,252.80/x - Step 3: Cross multiply
117,468,340.80x = 176,202,511.20 × 87,235,252.80 - Step 4: Simplify right side
117,468,340.80x = 15,371,070,608,526,830 - Step 5: Solve for x
x = 15,371,070,608,526,830/117,468,340.80 - Step 6: Final answer
x = 130,852,879.20
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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.