Finding the Fourth Proportional to 5,270,830.80, 7,906,246.20 and 3,143,317.20
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Solution
The fourth proportional to 5,270,830.80, 7,906,246.20 and 3,143,317.20 is: 4,714,975.80
Step by Step Solution
- Step 1: Write the proportion equation
5,270,830.80 : 7,906,246.20 = 3,143,317.20 : x - Step 2: Convert to fraction form
5,270,830.80/7,906,246.20 = 3,143,317.20/x - Step 3: Cross multiply
5,270,830.80x = 7,906,246.20 × 3,143,317.20 - Step 4: Simplify right side
5,270,830.80x = 24,851,839,667,894.64 - Step 5: Solve for x
x = 24,851,839,667,894.64/5,270,830.80 - Step 6: Final answer
x = 4,714,975.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.