Finding the Fourth Proportional to 5,379,314.49, 7,423,456.76 and 3,056,211.05
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Solution
The fourth proportional to 5,379,314.49, 7,423,456.76 and 3,056,211.05 is: 4,217,572.82
Step by Step Solution
- Step 1: Write the proportion equation
5,379,314.49 : 7,423,456.76 = 3,056,211.05 : x - Step 2: Convert to fraction form
5,379,314.49/7,423,456.76 = 3,056,211.05/x - Step 3: Cross multiply
5,379,314.49x = 7,423,456.76 × 3,056,211.05 - Step 4: Simplify right side
5,379,314.49x = 22,687,650,597,119.17 - Step 5: Solve for x
x = 22,687,650,597,119.17/5,379,314.49 - Step 6: Final answer
x = 4,217,572.82
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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.