Finding the Fourth Proportional to 19,183,883.09, 28,775,784.65 and 7,672,040.65
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Solution
The fourth proportional to 19,183,883.09, 28,775,784.65 and 7,672,040.65 is: 11,508,044.99
Step by Step Solution
- Step 1: Write the proportion equation
19,183,883.09 : 28,775,784.65 = 7,672,040.65 : x - Step 2: Convert to fraction form
19,183,883.09/28,775,784.65 = 7,672,040.65/x - Step 3: Cross multiply
19,183,883.09x = 28,775,784.65 × 7,672,040.65 - Step 4: Simplify right side
19,183,883.09x = 220,768,989,611,210.78 - Step 5: Solve for x
x = 220,768,989,611,210.78/19,183,883.09 - Step 6: Final answer
x = 11,508,044.99
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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.