Finding the Fourth Proportional to 747,471,175.20, 1,121,206,762.80 and 332,947,195.20
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Solution
The fourth proportional to 747,471,175.20, 1,121,206,762.80 and 332,947,195.20 is: 499,420,792.80
Step by Step Solution
- Step 1: Write the proportion equation
747,471,175.20 : 1,121,206,762.80 = 332,947,195.20 : x - Step 2: Convert to fraction form
747,471,175.20/1,121,206,762.80 = 332,947,195.20/x - Step 3: Cross multiply
747,471,175.20x = 1,121,206,762.80 × 332,947,195.20 - Step 4: Simplify right side
747,471,175.20x = 373,302,646,913,531,648 - Step 5: Solve for x
x = 373,302,646,913,531,648/747,471,175.20 - Step 6: Final answer
x = 499,420,792.80
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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.