Finding the Fourth Proportional to 11,869,684.20, 17,804,526.30 and 7,759,873.80
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Solution
The fourth proportional to 11,869,684.20, 17,804,526.30 and 7,759,873.80 is: 11,639,810.70
Step by Step Solution
- Step 1: Write the proportion equation
11,869,684.20 : 17,804,526.30 = 7,759,873.80 : x - Step 2: Convert to fraction form
11,869,684.20/17,804,526.30 = 7,759,873.80/x - Step 3: Cross multiply
11,869,684.20x = 17,804,526.30 × 7,759,873.80 - Step 4: Simplify right side
11,869,684.20x = 138,160,877,156,780.94 - Step 5: Solve for x
x = 138,160,877,156,780.94/11,869,684.20 - Step 6: Final answer
x = 11,639,810.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.