Finding the Fourth Proportional to 12,136,166.21, 18,204,124.48 and 7,015,337.91
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Solution
The fourth proportional to 12,136,166.21, 18,204,124.48 and 7,015,337.91 is: 10,522,934.70
Step by Step Solution
- Step 1: Write the proportion equation
12,136,166.21 : 18,204,124.48 = 7,015,337.91 : x - Step 2: Convert to fraction form
12,136,166.21/18,204,124.48 = 7,015,337.91/x - Step 3: Cross multiply
12,136,166.21x = 18,204,124.48 × 7,015,337.91 - Step 4: Simplify right side
12,136,166.21x = 127,708,084,565,364.69 - Step 5: Solve for x
x = 127,708,084,565,364.69/12,136,166.21 - Step 6: Final answer
x = 10,522,934.70
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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.