Finding the Fourth Proportional to 7,914,902,405.40, 11,884,068,929.70 and 4,428,271,531.80
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Solution
The fourth proportional to 7,914,902,405.40, 11,884,068,929.70 and 4,428,271,531.80 is: 6,648,961,847.90
Step by Step Solution
- Step 1: Write the proportion equation
7,914,902,405.40 : 11,884,068,929.70 = 4,428,271,531.80 : x - Step 2: Convert to fraction form
7,914,902,405.40/11,884,068,929.70 = 4,428,271,531.80/x - Step 3: Cross multiply
7,914,902,405.40x = 11,884,068,929.70 × 4,428,271,531.80 - Step 4: Simplify right side
7,914,902,405.40x = 52,625,884,123,339,407,360 - Step 5: Solve for x
x = 52,625,884,123,339,407,360/7,914,902,405.40 - Step 6: Final answer
x = 6,648,961,847.90
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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.