Finding the Fourth Proportional to 309,337,136.09, 428,009,367.08 and 269,727,207.02
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Solution
The fourth proportional to 309,337,136.09, 428,009,367.08 and 269,727,207.02 is: 373,203,724.00
Step by Step Solution
- Step 1: Write the proportion equation
309,337,136.09 : 428,009,367.08 = 269,727,207.02 : x - Step 2: Convert to fraction form
309,337,136.09/428,009,367.08 = 269,727,207.02/x - Step 3: Cross multiply
309,337,136.09x = 428,009,367.08 × 269,727,207.02 - Step 4: Simplify right side
309,337,136.09x = 115,445,771,162,630,656 - Step 5: Solve for x
x = 115,445,771,162,630,656/309,337,136.09 - Step 6: Final answer
x = 373,203,724.00
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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.