Finding the Fourth Proportional to 110,979,490.80, 155,626,378.80 and 110,979,490.80
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Solution
The fourth proportional to 110,979,490.80, 155,626,378.80 and 110,979,490.80 is: 155,626,378.80
Step by Step Solution
- Step 1: Write the proportion equation
110,979,490.80 : 155,626,378.80 = 110,979,490.80 : x - Step 2: Convert to fraction form
110,979,490.80/155,626,378.80 = 110,979,490.80/x - Step 3: Cross multiply
110,979,490.80x = 155,626,378.80 × 110,979,490.80 - Step 4: Simplify right side
110,979,490.80x = 17,271,336,274,271,916 - Step 5: Solve for x
x = 17,271,336,274,271,916/110,979,490.80 - Step 6: Final answer
x = 155,626,378.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.