Finding the Fourth Proportional to 88,578,830.40, 132,868,245.60 and 74,246,107.20
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Solution
The fourth proportional to 88,578,830.40, 132,868,245.60 and 74,246,107.20 is: 111,369,160.80
Step by Step Solution
- Step 1: Write the proportion equation
88,578,830.40 : 132,868,245.60 = 74,246,107.20 : x - Step 2: Convert to fraction form
88,578,830.40/132,868,245.60 = 74,246,107.20/x - Step 3: Cross multiply
88,578,830.40x = 132,868,245.60 × 74,246,107.20 - Step 4: Simplify right side
88,578,830.40x = 9,864,950,006,293,528 - Step 5: Solve for x
x = 9,864,950,006,293,528/88,578,830.40 - Step 6: Final answer
x = 111,369,160.80
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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.