Finding the Fourth Proportional to 11,398,468.80, 15,729,979.68 and 6,752,518.20
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Solution
The fourth proportional to 11,398,468.80, 15,729,979.68 and 6,752,518.20 is: 9,318,530.05
Step by Step Solution
- Step 1: Write the proportion equation
11,398,468.80 : 15,729,979.68 = 6,752,518.20 : x - Step 2: Convert to fraction form
11,398,468.80/15,729,979.68 = 6,752,518.20/x - Step 3: Cross multiply
11,398,468.80x = 15,729,979.68 × 6,752,518.20 - Step 4: Simplify right side
11,398,468.80x = 106,216,974,074,830.17 - Step 5: Solve for x
x = 106,216,974,074,830.17/11,398,468.80 - Step 6: Final answer
x = 9,318,530.05
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.