Finding the Fourth Proportional to 13,382,963.68, 18,468,657.84 and 7,271,494.24
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Solution
The fourth proportional to 13,382,963.68, 18,468,657.84 and 7,271,494.24 is: 10,034,753.31
Step by Step Solution
- Step 1: Write the proportion equation
13,382,963.68 : 18,468,657.84 = 7,271,494.24 : x - Step 2: Convert to fraction form
13,382,963.68/18,468,657.84 = 7,271,494.24/x - Step 3: Cross multiply
13,382,963.68x = 18,468,657.84 × 7,271,494.24 - Step 4: Simplify right side
13,382,963.68x = 134,294,739,104,090.84 - Step 5: Solve for x
x = 134,294,739,104,090.84/13,382,963.68 - Step 6: Final answer
x = 10,034,753.31
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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.