Finding the Fourth Proportional to 12,610,515.24, 18,918,432.36 and 4,090,190.04
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Solution
The fourth proportional to 12,610,515.24, 18,918,432.36 and 4,090,190.04 is: 6,136,147.66
Step by Step Solution
- Step 1: Write the proportion equation
12,610,515.24 : 18,918,432.36 = 4,090,190.04 : x - Step 2: Convert to fraction form
12,610,515.24/18,918,432.36 = 4,090,190.04/x - Step 3: Cross multiply
12,610,515.24x = 18,918,432.36 × 4,090,190.04 - Step 4: Simplify right side
12,610,515.24x = 77,379,983,611,285.69 - Step 5: Solve for x
x = 77,379,983,611,285.69/12,610,515.24 - Step 6: Final answer
x = 6,136,147.66
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1.5x scale
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.