Finding the Fourth Proportional to 673,612,812.80, 1,010,419,219.20 and 623,224,332.80
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Solution
The fourth proportional to 673,612,812.80, 1,010,419,219.20 and 623,224,332.80 is: 934,836,499.20
Step by Step Solution
- Step 1: Write the proportion equation
673,612,812.80 : 1,010,419,219.20 = 623,224,332.80 : x - Step 2: Convert to fraction form
673,612,812.80/1,010,419,219.20 = 623,224,332.80/x - Step 3: Cross multiply
673,612,812.80x = 1,010,419,219.20 × 623,224,332.80 - Step 4: Simplify right side
673,612,812.80x = 629,717,843,734,216,960 - Step 5: Solve for x
x = 629,717,843,734,216,960/673,612,812.80 - Step 6: Final answer
x = 934,836,499.20
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Double scale
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Similar ratio
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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.