Finding the Fourth Proportional to 15,289,277.36, 21,099,206.16 and 8,413,759.44
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Solution
The fourth proportional to 15,289,277.36, 21,099,206.16 and 8,413,759.44 is: 11,610,989.90
Step by Step Solution
- Step 1: Write the proportion equation
15,289,277.36 : 21,099,206.16 = 8,413,759.44 : x - Step 2: Convert to fraction form
15,289,277.36/21,099,206.16 = 8,413,759.44/x - Step 3: Cross multiply
15,289,277.36x = 21,099,206.16 × 8,413,759.44 - Step 4: Simplify right side
15,289,277.36x = 177,523,645,005,206.16 - Step 5: Solve for x
x = 177,523,645,005,206.16/15,289,277.36 - Step 6: Final answer
x = 11,610,989.90
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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.