Finding the Fourth Proportional to 19,729,609.71, 29,621,251.49 and 11,099,783.04
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Solution
The fourth proportional to 19,729,609.71, 29,621,251.49 and 11,099,783.04 is: 16,664,772.88
Step by Step Solution
- Step 1: Write the proportion equation
19,729,609.71 : 29,621,251.49 = 11,099,783.04 : x - Step 2: Convert to fraction form
19,729,609.71/29,621,251.49 = 11,099,783.04/x - Step 3: Cross multiply
19,729,609.71x = 29,621,251.49 × 11,099,783.04 - Step 4: Simplify right side
19,729,609.71x = 328,789,464,856,777.81 - Step 5: Solve for x
x = 328,789,464,856,777.81/19,729,609.71 - Step 6: Final answer
x = 16,664,772.88
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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.