Finding the Fourth Proportional to 578,592,213.80, 867,888,320.70 and 195,639,765.80
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Solution
The fourth proportional to 578,592,213.80, 867,888,320.70 and 195,639,765.80 is: 293,459,648.70
Step by Step Solution
- Step 1: Write the proportion equation
578,592,213.80 : 867,888,320.70 = 195,639,765.80 : x - Step 2: Convert to fraction form
578,592,213.80/867,888,320.70 = 195,639,765.80/x - Step 3: Cross multiply
578,592,213.80x = 867,888,320.70 × 195,639,765.80 - Step 4: Simplify right side
578,592,213.80x = 169,793,467,802,303,296 - Step 5: Solve for x
x = 169,793,467,802,303,296/578,592,213.80 - Step 6: Final answer
x = 293,459,648.70
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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.