Finding the Fourth Proportional to 12,934,817.30, 19,402,225.95 and 4,415,431.70
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Solution
The fourth proportional to 12,934,817.30, 19,402,225.95 and 4,415,431.70 is: 6,623,147.55
Step by Step Solution
- Step 1: Write the proportion equation
12,934,817.30 : 19,402,225.95 = 4,415,431.70 : x - Step 2: Convert to fraction form
12,934,817.30/19,402,225.95 = 4,415,431.70/x - Step 3: Cross multiply
12,934,817.30x = 19,402,225.95 × 4,415,431.70 - Step 4: Simplify right side
12,934,817.30x = 85,669,203,510,192.61 - Step 5: Solve for x
x = 85,669,203,510,192.61/12,934,817.30 - Step 6: Final answer
x = 6,623,147.55
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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.