Finding the Fourth Proportional to 5,560,878.78, 7,674,129.30 and 3,146,430.78
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Solution
The fourth proportional to 5,560,878.78, 7,674,129.30 and 3,146,430.78 is: 4,342,140.44
Step by Step Solution
- Step 1: Write the proportion equation
5,560,878.78 : 7,674,129.30 = 3,146,430.78 : x - Step 2: Convert to fraction form
5,560,878.78/7,674,129.30 = 3,146,430.78/x - Step 3: Cross multiply
5,560,878.78x = 7,674,129.30 × 3,146,430.78 - Step 4: Simplify right side
5,560,878.78x = 24,146,116,639,219.85 - Step 5: Solve for x
x = 24,146,116,639,219.85/5,560,878.78 - Step 6: Final answer
x = 4,342,140.44
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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.