Finding the Fourth Proportional to 1,378,683,212.13, 2,068,351,654.41 and 396,086,004
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Solution
The fourth proportional to 1,378,683,212.13, 2,068,351,654.41 and 396,086,004 is: 594,222,903.75
Step by Step Solution
- Step 1: Write the proportion equation
1,378,683,212.13 : 2,068,351,654.41 = 396,086,004 : x - Step 2: Convert to fraction form
1,378,683,212.13/2,068,351,654.41 = 396,086,004/x - Step 3: Cross multiply
1,378,683,212.13x = 2,068,351,654.41 × 396,086,004 - Step 4: Simplify right side
1,378,683,212.13x = 819,245,141,662,045,952 - Step 5: Solve for x
x = 819,245,141,662,045,952/1,378,683,212.13 - Step 6: Final answer
x = 594,222,903.75
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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.