Finding the Fourth Proportional to 38,173,817.28, 57,243,031.20 and 14,232,861.12
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Solution
The fourth proportional to 38,173,817.28, 57,243,031.20 and 14,232,861.12 is: 21,342,694.32
Step by Step Solution
- Step 1: Write the proportion equation
38,173,817.28 : 57,243,031.20 = 14,232,861.12 : x - Step 2: Convert to fraction form
38,173,817.28/57,243,031.20 = 14,232,861.12/x - Step 3: Cross multiply
38,173,817.28x = 57,243,031.20 × 14,232,861.12 - Step 4: Simplify right side
38,173,817.28x = 814,732,113,157,427 - Step 5: Solve for x
x = 814,732,113,157,427/38,173,817.28 - Step 6: Final answer
x = 21,342,694.32
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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.