Finding the Fourth Proportional to 5,768,828.79, 7,960,847.31 and 3,190,455.42
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Solution
The fourth proportional to 5,768,828.79, 7,960,847.31 and 3,190,455.42 is: 4,402,753.03
Step by Step Solution
- Step 1: Write the proportion equation
5,768,828.79 : 7,960,847.31 = 3,190,455.42 : x - Step 2: Convert to fraction form
5,768,828.79/7,960,847.31 = 3,190,455.42/x - Step 3: Cross multiply
5,768,828.79x = 7,960,847.31 × 3,190,455.42 - Step 4: Simplify right side
5,768,828.79x = 25,398,728,447,981.92 - Step 5: Solve for x
x = 25,398,728,447,981.92/5,768,828.79 - Step 6: Final answer
x = 4,402,753.03
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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.