Finding the Fourth Proportional to 744,482,959.20, 1,116,724,438.80 and 199,224,493.20
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Solution
The fourth proportional to 744,482,959.20, 1,116,724,438.80 and 199,224,493.20 is: 298,836,739.80
Step by Step Solution
- Step 1: Write the proportion equation
744,482,959.20 : 1,116,724,438.80 = 199,224,493.20 : x - Step 2: Convert to fraction form
744,482,959.20/1,116,724,438.80 = 199,224,493.20/x - Step 3: Cross multiply
744,482,959.20x = 1,116,724,438.80 × 199,224,493.20 - Step 4: Simplify right side
744,482,959.20x = 222,478,860,363,984,384 - Step 5: Solve for x
x = 222,478,860,363,984,384/744,482,959.20 - Step 6: Final answer
x = 298,836,739.80
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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.