Finding the Fourth Proportional to 18,303,921.63, 25,271,244.61 and 11,341,987.12
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Solution
The fourth proportional to 18,303,921.63, 25,271,244.61 and 11,341,987.12 is: 15,659,274.37
Step by Step Solution
- Step 1: Write the proportion equation
18,303,921.63 : 25,271,244.61 = 11,341,987.12 : x - Step 2: Convert to fraction form
18,303,921.63/25,271,244.61 = 11,341,987.12/x - Step 3: Cross multiply
18,303,921.63x = 25,271,244.61 × 11,341,987.12 - Step 4: Simplify right side
18,303,921.63x = 286,626,130,808,574.44 - Step 5: Solve for x
x = 286,626,130,808,574.44/18,303,921.63 - Step 6: Final answer
x = 15,659,274.37
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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.