Finding the Fourth Proportional to 9,767,121.60, 14,646,535.20 and 4,719,979.20
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Solution
The fourth proportional to 9,767,121.60, 14,646,535.20 and 4,719,979.20 is: 7,077,964.66
Step by Step Solution
- Step 1: Write the proportion equation
9,767,121.60 : 14,646,535.20 = 4,719,979.20 : x - Step 2: Convert to fraction form
9,767,121.60/14,646,535.20 = 4,719,979.20/x - Step 3: Cross multiply
9,767,121.60x = 14,646,535.20 × 4,719,979.20 - Step 4: Simplify right side
9,767,121.60x = 69,131,341,496,067.84 - Step 5: Solve for x
x = 69,131,341,496,067.84/9,767,121.60 - Step 6: Final answer
x = 7,077,964.66
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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.