Finding the Fourth Proportional to 9,259,515.12, 12,778,129.22 and 5,129,814.68
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Solution
The fourth proportional to 9,259,515.12, 12,778,129.22 and 5,129,814.68 is: 7,079,143.35
Step by Step Solution
- Step 1: Write the proportion equation
9,259,515.12 : 12,778,129.22 = 5,129,814.68 : x - Step 2: Convert to fraction form
9,259,515.12/12,778,129.22 = 5,129,814.68/x - Step 3: Cross multiply
9,259,515.12x = 12,778,129.22 × 5,129,814.68 - Step 4: Simplify right side
9,259,515.12x = 65,549,434,855,692.95 - Step 5: Solve for x
x = 65,549,434,855,692.95/9,259,515.12 - Step 6: Final answer
x = 7,079,143.35
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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.