Finding the Fourth Proportional to 8,534,185.84, 11,767,599.16 and 5,431,795.12
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Solution
The fourth proportional to 8,534,185.84, 11,767,599.16 and 5,431,795.12 is: 7,489,781.56
Step by Step Solution
- Step 1: Write the proportion equation
8,534,185.84 : 11,767,599.16 = 5,431,795.12 : x - Step 2: Convert to fraction form
8,534,185.84/11,767,599.16 = 5,431,795.12/x - Step 3: Cross multiply
8,534,185.84x = 11,767,599.16 × 5,431,795.12 - Step 4: Simplify right side
8,534,185.84x = 63,919,187,691,404.10 - Step 5: Solve for x
x = 63,919,187,691,404.10/8,534,185.84 - Step 6: Final answer
x = 7,489,781.56
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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.