Finding the Fourth Proportional to 11,326,048.20, 16,990,050.91 and 3,128,687.55
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Solution
The fourth proportional to 11,326,048.20, 16,990,050.91 and 3,128,687.55 is: 4,693,301.65
Step by Step Solution
- Step 1: Write the proportion equation
11,326,048.20 : 16,990,050.91 = 3,128,687.55 : x - Step 2: Convert to fraction form
11,326,048.20/16,990,050.91 = 3,128,687.55/x - Step 3: Cross multiply
11,326,048.20x = 16,990,050.91 × 3,128,687.55 - Step 4: Simplify right side
11,326,048.20x = 53,156,560,671,032.91 - Step 5: Solve for x
x = 53,156,560,671,032.91/11,326,048.20 - Step 6: Final answer
x = 4,693,301.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.