Finding the Fourth Proportional to 22,486,183.74, 31,030,943.58 and 12,172,906.50
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Solution
The fourth proportional to 22,486,183.74, 31,030,943.58 and 12,172,906.50 is: 16,798,616.39
Step by Step Solution
- Step 1: Write the proportion equation
22,486,183.74 : 31,030,943.58 = 12,172,906.50 : x - Step 2: Convert to fraction form
22,486,183.74/31,030,943.58 = 12,172,906.50/x - Step 3: Cross multiply
22,486,183.74x = 31,030,943.58 × 12,172,906.50 - Step 4: Simplify right side
22,486,183.74x = 377,736,774,806,115.25 - Step 5: Solve for x
x = 377,736,774,806,115.25/22,486,183.74 - Step 6: Final answer
x = 16,798,616.39
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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.