Finding the Fourth Proportional to 12,070,865.84, 16,657,563.89 and 6,638,357.84
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Solution
The fourth proportional to 12,070,865.84, 16,657,563.89 and 6,638,357.84 is: 9,160,806.80
Step by Step Solution
- Step 1: Write the proportion equation
12,070,865.84 : 16,657,563.89 = 6,638,357.84 : x - Step 2: Convert to fraction form
12,070,865.84/16,657,563.89 = 6,638,357.84/x - Step 3: Cross multiply
12,070,865.84x = 16,657,563.89 × 6,638,357.84 - Step 4: Simplify right side
12,070,865.84x = 110,578,869,861,078.30 - Step 5: Solve for x
x = 110,578,869,861,078.30/12,070,865.84 - Step 6: Final answer
x = 9,160,806.80
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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.