Finding the Fourth Proportional to 10,992,428.70, 16,488,643.05 and 8,122,647.30
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Solution
The fourth proportional to 10,992,428.70, 16,488,643.05 and 8,122,647.30 is: 12,183,970.95
Step by Step Solution
- Step 1: Write the proportion equation
10,992,428.70 : 16,488,643.05 = 8,122,647.30 : x - Step 2: Convert to fraction form
10,992,428.70/16,488,643.05 = 8,122,647.30/x - Step 3: Cross multiply
10,992,428.70x = 16,488,643.05 × 8,122,647.30 - Step 4: Simplify right side
10,992,428.70x = 133,931,431,950,746.27 - Step 5: Solve for x
x = 133,931,431,950,746.27/10,992,428.70 - Step 6: Final answer
x = 12,183,970.95
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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.