Finding the Fourth Proportional to 7,690,371.18, 11,542,490.40 and 4,099,129.26
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Solution
The fourth proportional to 7,690,371.18, 11,542,490.40 and 4,099,129.26 is: 6,152,389.66
Step by Step Solution
- Step 1: Write the proportion equation
7,690,371.18 : 11,542,490.40 = 4,099,129.26 : x - Step 2: Convert to fraction form
7,690,371.18/11,542,490.40 = 4,099,129.26/x - Step 3: Cross multiply
7,690,371.18x = 11,542,490.40 × 4,099,129.26 - Step 4: Simplify right side
7,690,371.18x = 47,314,160,131,909.10 - Step 5: Solve for x
x = 47,314,160,131,909.10/7,690,371.18 - Step 6: Final answer
x = 6,152,389.66
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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.