Finding the Fourth Proportional to 14,488,826.18, 19,994,163.32 and 7,962,447.74
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Solution
The fourth proportional to 14,488,826.18, 19,994,163.32 and 7,962,447.74 is: 10,987,948.82
Step by Step Solution
- Step 1: Write the proportion equation
14,488,826.18 : 19,994,163.32 = 7,962,447.74 : x - Step 2: Convert to fraction form
14,488,826.18/19,994,163.32 = 7,962,447.74/x - Step 3: Cross multiply
14,488,826.18x = 19,994,163.32 × 7,962,447.74 - Step 4: Simplify right side
14,488,826.18x = 159,202,480,460,460.22 - Step 5: Solve for x
x = 159,202,480,460,460.22/14,488,826.18 - Step 6: Final answer
x = 10,987,948.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.