Finding the Fourth Proportional to 13,475,480.70, 20,214,095.85 and 7,098,188.70
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Solution
The fourth proportional to 13,475,480.70, 20,214,095.85 and 7,098,188.70 is: 10,647,743.85
Step by Step Solution
- Step 1: Write the proportion equation
13,475,480.70 : 20,214,095.85 = 7,098,188.70 : x - Step 2: Convert to fraction form
13,475,480.70/20,214,095.85 = 7,098,188.70/x - Step 3: Cross multiply
13,475,480.70x = 20,214,095.85 × 7,098,188.70 - Step 4: Simplify right side
13,475,480.70x = 143,483,466,743,186.91 - Step 5: Solve for x
x = 143,483,466,743,186.91/13,475,480.70 - Step 6: Final answer
x = 10,647,743.85
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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.