Finding the Fourth Proportional to 28,305,479.45, 42,453,489.98 and 7,837,268.09
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Solution
The fourth proportional to 28,305,479.45, 42,453,489.98 and 7,837,268.09 is: 11,754,592.70
Step by Step Solution
- Step 1: Write the proportion equation
28,305,479.45 : 42,453,489.98 = 7,837,268.09 : x - Step 2: Convert to fraction form
28,305,479.45/42,453,489.98 = 7,837,268.09/x - Step 3: Cross multiply
28,305,479.45x = 42,453,489.98 × 7,837,268.09 - Step 4: Simplify right side
28,305,479.45x = 332,719,382,077,934.94 - Step 5: Solve for x
x = 332,719,382,077,934.94/28,305,479.45 - Step 6: Final answer
x = 11,754,592.70
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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.