Finding the Fourth Proportional to 19,476,877.10, 29,215,315.65 and 18,732,859.70
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Solution
The fourth proportional to 19,476,877.10, 29,215,315.65 and 18,732,859.70 is: 28,099,289.55
Step by Step Solution
- Step 1: Write the proportion equation
19,476,877.10 : 29,215,315.65 = 18,732,859.70 : x - Step 2: Convert to fraction form
19,476,877.10/29,215,315.65 = 18,732,859.70/x - Step 3: Cross multiply
19,476,877.10x = 29,215,315.65 × 18,732,859.70 - Step 4: Simplify right side
19,476,877.10x = 547,286,409,162,664.25 - Step 5: Solve for x
x = 547,286,409,162,664.25/19,476,877.10 - Step 6: Final answer
x = 28,099,289.55
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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.