Finding the Fourth Proportional to 485,168,331.20, 727,256,485.20 and 239,146,577.60
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Solution
The fourth proportional to 485,168,331.20, 727,256,485.20 and 239,146,577.60 is: 358,475,375.02
Step by Step Solution
- Step 1: Write the proportion equation
485,168,331.20 : 727,256,485.20 = 239,146,577.60 : x - Step 2: Convert to fraction form
485,168,331.20/727,256,485.20 = 239,146,577.60/x - Step 3: Cross multiply
485,168,331.20x = 727,256,485.20 × 239,146,577.60 - Step 4: Simplify right side
485,168,331.20x = 173,920,899,472,985,056 - Step 5: Solve for x
x = 173,920,899,472,985,056/485,168,331.20 - Step 6: Final answer
x = 358,475,375.02
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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.