Finding the Fourth Proportional to 28,571,104.78, 39,427,454.00 and 16,811,134.84
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Solution
The fourth proportional to 28,571,104.78, 39,427,454.00 and 16,811,134.84 is: 23,198,971.50
Step by Step Solution
- Step 1: Write the proportion equation
28,571,104.78 : 39,427,454.00 = 16,811,134.84 : x - Step 2: Convert to fraction form
28,571,104.78/39,427,454.00 = 16,811,134.84/x - Step 3: Cross multiply
28,571,104.78x = 39,427,454.00 × 16,811,134.84 - Step 4: Simplify right side
28,571,104.78x = 662,820,245,706,862.75 - Step 5: Solve for x
x = 662,820,245,706,862.75/28,571,104.78 - Step 6: Final answer
x = 23,198,971.50
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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.