Finding the Fourth Proportional to 88,578,880.40, 132,868,320.60 and 84,752,505.20
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Solution
The fourth proportional to 88,578,880.40, 132,868,320.60 and 84,752,505.20 is: 127,128,757.80
Step by Step Solution
- Step 1: Write the proportion equation
88,578,880.40 : 132,868,320.60 = 84,752,505.20 : x - Step 2: Convert to fraction form
88,578,880.40/132,868,320.60 = 84,752,505.20/x - Step 3: Cross multiply
88,578,880.40x = 132,868,320.60 × 84,752,505.20 - Step 4: Simplify right side
88,578,880.40x = 11,260,923,032,566,768 - Step 5: Solve for x
x = 11,260,923,032,566,768/88,578,880.40 - Step 6: Final answer
x = 127,128,757.80
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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.