Finding the Fourth Proportional to 5,214,775.68, 7,206,261.12 and 3,923,372.16
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Solution
The fourth proportional to 5,214,775.68, 7,206,261.12 and 3,923,372.16 is: 5,421,679.86
Step by Step Solution
- Step 1: Write the proportion equation
5,214,775.68 : 7,206,261.12 = 3,923,372.16 : x - Step 2: Convert to fraction form
5,214,775.68/7,206,261.12 = 3,923,372.16/x - Step 3: Cross multiply
5,214,775.68x = 7,206,261.12 × 3,923,372.16 - Step 4: Simplify right side
5,214,775.68x = 28,272,844,255,898.42 - Step 5: Solve for x
x = 28,272,844,255,898.42/5,214,775.68 - Step 6: Final answer
x = 5,421,679.86
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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.