Finding the Fourth Proportional to 19,476,844.60, 29,215,266.90 and 18,732,827.20
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Solution
The fourth proportional to 19,476,844.60, 29,215,266.90 and 18,732,827.20 is: 28,099,240.80
Step by Step Solution
- Step 1: Write the proportion equation
19,476,844.60 : 29,215,266.90 = 18,732,827.20 : x - Step 2: Convert to fraction form
19,476,844.60/29,215,266.90 = 18,732,827.20/x - Step 3: Cross multiply
19,476,844.60x = 29,215,266.90 × 18,732,827.20 - Step 4: Simplify right side
19,476,844.60x = 547,284,546,439,579.62 - Step 5: Solve for x
x = 547,284,546,439,579.62/19,476,844.60 - Step 6: Final answer
x = 28,099,240.80
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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.