Finding the Fourth Proportional to 7,202,674,525.76, 9,939,477,364.80 and 3,987,727,799.84
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Solution
The fourth proportional to 7,202,674,525.76, 9,939,477,364.80 and 3,987,727,799.84 is: 5,502,946,171.14
Step by Step Solution
- Step 1: Write the proportion equation
7,202,674,525.76 : 9,939,477,364.80 = 3,987,727,799.84 : x - Step 2: Convert to fraction form
7,202,674,525.76/9,939,477,364.80 = 3,987,727,799.84/x - Step 3: Cross multiply
7,202,674,525.76x = 9,939,477,364.80 × 3,987,727,799.84 - Step 4: Simplify right side
7,202,674,525.76x = 39,635,930,203,493,384,192 - Step 5: Solve for x
x = 39,635,930,203,493,384,192/7,202,674,525.76 - Step 6: Final answer
x = 5,502,946,171.14
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.