Finding the Fourth Proportional to 12,453,878.42, 17,186,656.66 and 6,947,214.12
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Solution
The fourth proportional to 12,453,878.42, 17,186,656.66 and 6,947,214.12 is: 9,587,325.31
Step by Step Solution
- Step 1: Write the proportion equation
12,453,878.42 : 17,186,656.66 = 6,947,214.12 : x - Step 2: Convert to fraction form
12,453,878.42/17,186,656.66 = 6,947,214.12/x - Step 3: Cross multiply
12,453,878.42x = 17,186,656.66 × 6,947,214.12 - Step 4: Simplify right side
12,453,878.42x = 119,399,383,823,944.05 - Step 5: Solve for x
x = 119,399,383,823,944.05/12,453,878.42 - Step 6: Final answer
x = 9,587,325.31
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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.