Finding the Fourth Proportional to 20,257,776.35, 27,959,263.97 and 12,002,486.49
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Solution
The fourth proportional to 20,257,776.35, 27,959,263.97 and 12,002,486.49 is: 16,565,524.38
Step by Step Solution
- Step 1: Write the proportion equation
20,257,776.35 : 27,959,263.97 = 12,002,486.49 : x - Step 2: Convert to fraction form
20,257,776.35/27,959,263.97 = 12,002,486.49/x - Step 3: Cross multiply
20,257,776.35x = 27,959,263.97 × 12,002,486.49 - Step 4: Simplify right side
20,257,776.35x = 335,580,688,070,268.75 - Step 5: Solve for x
x = 335,580,688,070,268.75/20,257,776.35 - Step 6: Final answer
x = 16,565,524.38
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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.