Finding the Fourth Proportional to 18,862,701.42, 28,294,048.49 and 8,073,005.70
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Solution
The fourth proportional to 18,862,701.42, 28,294,048.49 and 8,073,005.70 is: 12,109,506.99
Step by Step Solution
- Step 1: Write the proportion equation
18,862,701.42 : 28,294,048.49 = 8,073,005.70 : x - Step 2: Convert to fraction form
18,862,701.42/28,294,048.49 = 8,073,005.70/x - Step 3: Cross multiply
18,862,701.42x = 28,294,048.49 × 8,073,005.70 - Step 4: Simplify right side
18,862,701.42x = 228,418,014,695,481.38 - Step 5: Solve for x
x = 228,418,014,695,481.38/18,862,701.42 - Step 6: Final answer
x = 12,109,506.99
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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.