Finding the Fourth Proportional to 11,922,987.68, 16,455,990.48 and 6,766,832.24
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Solution
The fourth proportional to 11,922,987.68, 16,455,990.48 and 6,766,832.24 is: 9,339,515.39
Step by Step Solution
- Step 1: Write the proportion equation
11,922,987.68 : 16,455,990.48 = 6,766,832.24 : x - Step 2: Convert to fraction form
11,922,987.68/16,455,990.48 = 6,766,832.24/x - Step 3: Cross multiply
11,922,987.68x = 16,455,990.48 × 6,766,832.24 - Step 4: Simplify right side
11,922,987.68x = 111,354,926,921,197.08 - Step 5: Solve for x
x = 111,354,926,921,197.08/11,922,987.68 - Step 6: Final answer
x = 9,339,515.39
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1.5x scale
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.