Finding the Fourth Proportional to 88,979,828.80, 133,469,743.20 and 69,869,531.20
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Solution
The fourth proportional to 88,979,828.80, 133,469,743.20 and 69,869,531.20 is: 104,804,296.80
Step by Step Solution
- Step 1: Write the proportion equation
88,979,828.80 : 133,469,743.20 = 69,869,531.20 : x - Step 2: Convert to fraction form
88,979,828.80/133,469,743.20 = 69,869,531.20/x - Step 3: Cross multiply
88,979,828.80x = 133,469,743.20 × 69,869,531.20 - Step 4: Simplify right side
88,979,828.80x = 9,325,468,386,768,388 - Step 5: Solve for x
x = 9,325,468,386,768,388/88,979,828.80 - Step 6: Final answer
x = 104,804,296.80
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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.