Finding the Fourth Proportional to 19,202,039.12, 26,486,328.12 and 12,315,613.52
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Solution
The fourth proportional to 19,202,039.12, 26,486,328.12 and 12,315,613.52 is: 16,987,538.60
Step by Step Solution
- Step 1: Write the proportion equation
19,202,039.12 : 26,486,328.12 = 12,315,613.52 : x - Step 2: Convert to fraction form
19,202,039.12/26,486,328.12 = 12,315,613.52/x - Step 3: Cross multiply
19,202,039.12x = 26,486,328.12 × 12,315,613.52 - Step 4: Simplify right side
19,202,039.12x = 326,195,380,689,828.19 - Step 5: Solve for x
x = 326,195,380,689,828.19/19,202,039.12 - Step 6: Final answer
x = 16,987,538.60
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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.