Finding the Fourth Proportional to 6,928,774,664.48, 9,561,897,049.19 and 3,918,477,523.65
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Solution
The fourth proportional to 6,928,774,664.48, 9,561,897,049.19 and 3,918,477,523.65 is: 5,407,605,310.46
Step by Step Solution
- Step 1: Write the proportion equation
6,928,774,664.48 : 9,561,897,049.19 = 3,918,477,523.65 : x - Step 2: Convert to fraction form
6,928,774,664.48/9,561,897,049.19 = 3,918,477,523.65/x - Step 3: Cross multiply
6,928,774,664.48x = 9,561,897,049.19 × 3,918,477,523.65 - Step 4: Simplify right side
6,928,774,664.48x = 37,468,078,670,650,343,424 - Step 5: Solve for x
x = 37,468,078,670,650,343,424/6,928,774,664.48 - Step 6: Final answer
x = 5,407,605,310.46
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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.