Finding the Fourth Proportional to 13,651,274.19, 18,838,634.35 and 7,456,319.61
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Solution
The fourth proportional to 13,651,274.19, 18,838,634.35 and 7,456,319.61 is: 10,289,653.32
Step by Step Solution
- Step 1: Write the proportion equation
13,651,274.19 : 18,838,634.35 = 7,456,319.61 : x - Step 2: Convert to fraction form
13,651,274.19/18,838,634.35 = 7,456,319.61/x - Step 3: Cross multiply
13,651,274.19x = 18,838,634.35 × 7,456,319.61 - Step 4: Simplify right side
13,651,274.19x = 140,466,878,729,524.62 - Step 5: Solve for x
x = 140,466,878,729,524.62/13,651,274.19 - Step 6: Final answer
x = 10,289,653.32
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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.