Finding the Fourth Proportional to 8,492,603.70, 12,738,905.55 and 5,125,077.30
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Solution
The fourth proportional to 8,492,603.70, 12,738,905.55 and 5,125,077.30 is: 7,687,615.95
Step by Step Solution
- Step 1: Write the proportion equation
8,492,603.70 : 12,738,905.55 = 5,125,077.30 : x - Step 2: Convert to fraction form
8,492,603.70/12,738,905.55 = 5,125,077.30/x - Step 3: Cross multiply
8,492,603.70x = 12,738,905.55 × 5,125,077.30 - Step 4: Simplify right side
8,492,603.70x = 65,287,875,661,149.02 - Step 5: Solve for x
x = 65,287,875,661,149.02/8,492,603.70 - Step 6: Final answer
x = 7,687,615.95
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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.