Finding the Fourth Proportional to 19,708,536.30, 27,000,243.36 and 18,971,680.11
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Solution
The fourth proportional to 19,708,536.30, 27,000,243.36 and 18,971,680.11 is: 25,990,767.26
Step by Step Solution
- Step 1: Write the proportion equation
19,708,536.30 : 27,000,243.36 = 18,971,680.11 : x - Step 2: Convert to fraction form
19,708,536.30/27,000,243.36 = 18,971,680.11/x - Step 3: Cross multiply
19,708,536.30x = 27,000,243.36 × 18,971,680.11 - Step 4: Simplify right side
19,708,536.30x = 512,239,979,918,071.56 - Step 5: Solve for x
x = 512,239,979,918,071.56/19,708,536.30 - Step 6: Final answer
x = 25,990,767.26
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.