Finding the Fourth Proportional to 663,146,124.80, 994,719,187.20 and 622,802,163.20
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Solution
The fourth proportional to 663,146,124.80, 994,719,187.20 and 622,802,163.20 is: 934,203,244.80
Step by Step Solution
- Step 1: Write the proportion equation
663,146,124.80 : 994,719,187.20 = 622,802,163.20 : x - Step 2: Convert to fraction form
663,146,124.80/994,719,187.20 = 622,802,163.20/x - Step 3: Cross multiply
663,146,124.80x = 994,719,187.20 × 622,802,163.20 - Step 4: Simplify right side
663,146,124.80x = 619,513,261,564,705,792 - Step 5: Solve for x
x = 619,513,261,564,705,792/663,146,124.80 - Step 6: Final answer
x = 934,203,244.80
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1.5x scale
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.