Finding the Fourth Proportional to 11,119,420.67, 16,689,916.55 and 5,366,203.09
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Solution
The fourth proportional to 11,119,420.67, 16,689,916.55 and 5,366,203.09 is: 8,054,509.71
Step by Step Solution
- Step 1: Write the proportion equation
11,119,420.67 : 16,689,916.55 = 5,366,203.09 : x - Step 2: Convert to fraction form
11,119,420.67/16,689,916.55 = 5,366,203.09/x - Step 3: Cross multiply
11,119,420.67x = 16,689,916.55 × 5,366,203.09 - Step 4: Simplify right side
11,119,420.67x = 89,561,481,734,142.86 - Step 5: Solve for x
x = 89,561,481,734,142.86/11,119,420.67 - Step 6: Final answer
x = 8,054,509.71
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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.