Finding the Fourth Proportional to 11,690,995.20, 17,536,492.80 and 7,449,964.80
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Solution
The fourth proportional to 11,690,995.20, 17,536,492.80 and 7,449,964.80 is: 11,174,947.20
Step by Step Solution
- Step 1: Write the proportion equation
11,690,995.20 : 17,536,492.80 = 7,449,964.80 : x - Step 2: Convert to fraction form
11,690,995.20/17,536,492.80 = 7,449,964.80/x - Step 3: Cross multiply
11,690,995.20x = 17,536,492.80 × 7,449,964.80 - Step 4: Simplify right side
11,690,995.20x = 130,646,254,075,453.44 - Step 5: Solve for x
x = 130,646,254,075,453.44/11,690,995.20 - Step 6: Final answer
x = 11,174,947.20
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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.