Finding the Fourth Proportional to 18,479,871.99, 25,502,392.62 and 10,219,507.38
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Solution
The fourth proportional to 18,479,871.99, 25,502,392.62 and 10,219,507.38 is: 14,103,013.79
Step by Step Solution
- Step 1: Write the proportion equation
18,479,871.99 : 25,502,392.62 = 10,219,507.38 : x - Step 2: Convert to fraction form
18,479,871.99/25,502,392.62 = 10,219,507.38/x - Step 3: Cross multiply
18,479,871.99x = 25,502,392.62 × 10,219,507.38 - Step 4: Simplify right side
18,479,871.99x = 260,621,889,587,747.56 - Step 5: Solve for x
x = 260,621,889,587,747.56/18,479,871.99 - Step 6: Final answer
x = 14,103,013.79
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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.