Finding the Fourth Proportional to 944,784,987.40, 1,417,177,481.10 and 636,407,489.80
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Solution
The fourth proportional to 944,784,987.40, 1,417,177,481.10 and 636,407,489.80 is: 954,611,234.70
Step by Step Solution
- Step 1: Write the proportion equation
944,784,987.40 : 1,417,177,481.10 = 636,407,489.80 : x - Step 2: Convert to fraction form
944,784,987.40/1,417,177,481.10 = 636,407,489.80/x - Step 3: Cross multiply
944,784,987.40x = 1,417,177,481.10 × 636,407,489.80 - Step 4: Simplify right side
944,784,987.40x = 901,902,363,347,937,792 - Step 5: Solve for x
x = 901,902,363,347,937,792/944,784,987.40 - Step 6: Final answer
x = 954,611,234.70
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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.