Finding the Fourth Proportional to 10,659,873.52, 14,703,853.12 and 6,989,028.08
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Solution
The fourth proportional to 10,659,873.52, 14,703,853.12 and 6,989,028.08 is: 9,640,418.54
Step by Step Solution
- Step 1: Write the proportion equation
10,659,873.52 : 14,703,853.12 = 6,989,028.08 : x - Step 2: Convert to fraction form
10,659,873.52/14,703,853.12 = 6,989,028.08/x - Step 3: Cross multiply
10,659,873.52x = 14,703,853.12 × 6,989,028.08 - Step 4: Simplify right side
10,659,873.52x = 102,765,642,339,875.61 - Step 5: Solve for x
x = 102,765,642,339,875.61/10,659,873.52 - Step 6: Final answer
x = 9,640,418.54
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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.