Finding the Fourth Proportional to 7,274,865,743.60, 10,912,298,615.40 and 3,138,979,305.20
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Solution
The fourth proportional to 7,274,865,743.60, 10,912,298,615.40 and 3,138,979,305.20 is: 4,708,468,957.80
Step by Step Solution
- Step 1: Write the proportion equation
7,274,865,743.60 : 10,912,298,615.40 = 3,138,979,305.20 : x - Step 2: Convert to fraction form
7,274,865,743.60/10,912,298,615.40 = 3,138,979,305.20/x - Step 3: Cross multiply
7,274,865,743.60x = 10,912,298,615.40 × 3,138,979,305.20 - Step 4: Simplify right side
7,274,865,743.60x = 34,253,479,525,903,212,544 - Step 5: Solve for x
x = 34,253,479,525,903,212,544/7,274,865,743.60 - Step 6: Final answer
x = 4,708,468,957.80
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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.