Finding the Fourth Proportional to 7,638,781.60, 11,459,589.27 and 2,521,567.99
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Solution
The fourth proportional to 7,638,781.60, 11,459,589.27 and 2,521,567.99 is: 3,782,819.69
Step by Step Solution
- Step 1: Write the proportion equation
7,638,781.60 : 11,459,589.27 = 2,521,567.99 : x - Step 2: Convert to fraction form
7,638,781.60/11,459,589.27 = 2,521,567.99/x - Step 3: Cross multiply
7,638,781.60x = 11,459,589.27 × 2,521,567.99 - Step 4: Simplify right side
7,638,781.60x = 28,896,133,481,779.47 - Step 5: Solve for x
x = 28,896,133,481,779.47/7,638,781.60 - Step 6: Final answer
x = 3,782,819.69
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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.